Bryant 548F User Manual

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installation, start-up and service instructions

SINGLE PACKAGE ROOFTOP STANDARD-EFFICIENCY HEAT PUMP UNITS

Cancels: New II 548F-36-1

548F

Sizes 036-072

3-6 Tons

8/15/00

IMPORTANT — READ BEFORE INSTALLING

1. Read and become familiar with these installation instructions before installing this unit.

2. Be sure the installation conforms to all applicable local and national codes.

3. These instructions contai n importa nt inform ation for the proper maintenance and repair of this equipment. Retain these instructions for future u se.

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-36

I. Step 1 — Provide Unit Support. . . . . . . . . . . . . . . . . 1

II. Step 2 — Field Fabricate Ductwork . . . . . . . . . . . . . 1

III. Step 3 — Install Condensate Drain Line

and External Trap. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

IV. Step 4 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . 3

V. Step 5 — Make Electrical Connections . . . . . . . . . . 4

VI. Step 6 — Adjust Factory-Installed Options . . . . . . 13

VII. Step 7 — Adjust Indoor-Fan Speed . . . . . . . . . . . . 20

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37-39

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39-41

TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . .42-44

START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, rep air, or servic e air-conditionin g equipment.

Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other operations sh o uld be perfor me d by trai ne d se rvi ce personnel. When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precaution s that may apply.

Follow all safety codes. Wear safety glasse s and work g love s. Use quenching cloth for unbrazing operations. Have fire extinguisher available for all brazing operations.

WARNING:

                        

CAUTION: Ensure voltage listed on unit data plate agrees with electrical supply provided for the unit.

INSTALLATION

Unit is shipped in the vertical discharge configuration. To convert to horizontal config uration, remove hor izontal duct opening covers. Using the same screws, install covers on duct openings in basepan of unit with the insulation-side down. Seals around duct openings must be tight.

I. STEP 1 — PROVIDE UNIT SUPPORT

A. Roof Curb

Assemble and install access ory roof curb in accorda nce with instructions shipped with curb. See Fig. 1. Install insulation, cant strips, roofing felt, and counte r flashing as sho wn. Duct- work must be attached to curb, not to the unit. If electric or control power is to be routed through the basepan, attach the accessory thru-the-bottom service connections to the basepan and roof curb in accordance with the accessory installation instructions. Connections must be installed before unit is set on roof curb.

IMPORTANT: The gasketing of the unit to the roof curb is critical for watertightness. Install gasket supplied with the roof curb as shown in Fig. 1. Improperly applied gask et can also result in air leaks and poor unit performance.

Curb should be level. This is necessar y for unit drain to function properly. Unit leveling tolerances are shown in Fig. 2. Refer to Accessory Roof Curb Installation Instructions for additional information as required.

B. Slab Mount (Horizontal Units Only)

Provide a level concrete slab that exte nds a m ini mum o f 6 i n . beyond unit cabinet. Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from obstructing airflow.

NOTE: Horizontal units may be installed on a roof curb if required.

II. STEP 2 — FIELD FABRICATE DUCTWORK

Secure all ducts to ro of curb and b uil ding stru cture on v ertical discharge units. Do not connect ductwork to unit. For hor- izontal applications, field-supplied flanges should be attached to horizontal discharge open ings and all ductwork should be attached to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openi ngs wi th co unter flashing and mastic in accordance with applicable codes.

Ducts passing through a n unco nditi one d spa ce mu st be ins ulated and covered with a vapor barrier.

7. Direction of airflow.

NOTES:

1. Roof curb accessory is shipped disassembled.

UNIT SIZE

8. Connector packages CRBTMPWR001A00 and 002A00 are for thru-the-

2. Insulated panels.

548F

curb connections. Packages CRBTMPWR003A00 and 004A00 are for

thru-the-bottom connections.

Fig. 1 — Roof Curb

PKG. ACCY.

CONNECTOR

CRBTMPWR001A00

CRBTMPWR003A00

″

“G”

CONTROL

3. Dimensions in [ ] are in millimeters.

4. Roof curb, galvanized steel.

5. Attach ductwork to curb (flanges of duct rest on curb).

6. Service clearance: 4 ft on each side.

“F”

POWER

036-072

“E”

GAS

″

-2

-0

′

[356]

[610]

HOLE

D ALT

DRAIN

[12.7]

[31.7] CRBTMPWR002A00

[31.7] CRBTMPWR004A00

″

[19] NPT

[19] NPT)

″

[19] NPT

[12.7] NPT

″

[44.5]

END OF CURB AS POSSIBLE.

PLACE UNIT AS CLOSE TO THIS

ROOF CURB

″

-4

′

[406]

″

ACCESSORY

CRRFCURB001A00

CRRFCURB002A00

[551]

-9

′

—2—

MAXIMUM ALLOWABLE

DRAIN PLUG

DIFFERENCE (in.)

A-B B-C A-C

0.5 1.0 1.0

Fig. 2 — Unit Leveling Tolerances

If a plenum return is used on a vertical unit, the return should be ducted through th e roof deck to comply with applicable fire codes.

A minimum clearanc e to comb ustible s is no t required around ductwork on vertical discharge units. On horizontal discharge units with electric heat, a minimum clearance of

1.0 in. is required for the first 12 in. of ductwork. Cabinet return-air static pressure should not exceed –0.35 in. wg with Durablade econ omizer, –0.30 in. wg with EconoMi$er, or –0.45 in. wg without economizer.

III. STEP 3 — INSTALL CONDENSATE DRAIN LINE AND EXTERNAL TRAP

Condensate drain connections are located on the botto m and side of the unit. Unit discharge connections do not determine the use of drain connections; either drain connection can be used with vertical or horizontal discharge units.

When using the standard side drain connection, make sure the plug in the alternate bottom connection is tight before installing the unit.

To use the bottom drain connection for a roof curb installation, relocate the factory-installed plug from the bottom connection to the side connection. See Fig. 3. The piping for the condensate drain and external trap can be completed after the unit is in place.

All units must have an external trap for condensate drainage. Install a trap at least 4 in. deep and protect against freeze-up. If drain line is installed downstream from the external trap, pitch the line away from the 548F unit at 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection.

IV. STEP 4 — RIG AND PLACE UNIT

Inspect unit for transportation damage, and file any claim with transportation agency. Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit, and rollers may be used to move unit across a roof. Level by using unit frame as a reference. See Table 1 and Fig. 4 for additional information. Operating weight is shown in Table 1 and Fig. 4.

Lifting holes are provided in base rails as shown in Fig. 4 and 5. Refer to rigging instructions on unit.

CAUTION:

       

 

A. Positioning

Maintain clearance around and above unit to provide proper airflow and service access. See Fig. 5.

A properly positioned unit will have the following clearances:

/4-in. clearance between roof curb and base rails on each side and front of unit; rear of unit. (See Fig. 1, section C-C.)

Do not install unit in an indoor location. Do not locate unit air inlets near exhaust vents or other sources of contaminated air.

Although unit is weatherproof, guard against water from higher level runoff and overhangs.

After unit is in position, remove polyethylene shipping wrapper and top crating.

NOTE:

Drain plug is shown in factory-installed position.

Fig. 3 — Condensate Drain Connection (Side View)

/4-in. cleara nc e b et w ee n r o of c u rb a nd

—3—

NOTES:

1. Dimension in ( ) is in millimeters.

2. Hook rigging shackles through holes in base rail, as shown in detail ‘‘A.’’ Holes in base rails are centered around the unit center of gravity. Use wooden top skid when rigging to prevent rigging straps from damaging unit.

3. Unit weights do not include economizer. See Table 1 for economizer weights.

CAUTION:

lifting.

All panels must be in place when rigging and

Fig. 4 — Rigging Details

UNIT

548F036 548F048 548F060 548F072

OPERATING

WEIGHT

lb kg in. mm in. mm in. mm

500 227 73.69 1872 35.50 902 33.31 847 520 236 73.69 1872 35.50 902 33.31 847 550 249 73.69 1872 35.50 902 33.31 847 590 268 73.69 1872 35.50 902 33.31 847

‘‘A’’ ‘‘B’’ ‘‘C’’

DIMENSIONS

V. STEP 5 — MAKE ELECTRICAL CONNECTIONS

WARNING:

                         !                          "# $"  #% "&' (")* $ " & '(" ) *  % +, $ %     )                

A. Field Power Supply

All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connecte d to a 208-v p ower sup ply, the tr ansfor mer must be rewired by dis connecting the black wire fr om the 230-v

/4-in. male spade terminal on the transformer and connecting it to the 208-v transformer.

Refer to unit label diagram for additional information. Pigtails are provided for field wire connections. Use factory-supplied

/4-in. male spade terminal from the

splices or UL (Underwriters’ Laboratories) approved copper/ aluminum connector .

When installing units, provide a disconnect per the NEC. All field wiring must comply with the NEC and local requirements.

Install field wiring as follows:

1. Install conduit through side panel ope nings . For units without electric heat, install conduit between disconnect and control box.

2. Install power lines to terminal connections as shown in Fig. 6.

3. For units with electric heat, refer to Accessory Electric Heat Installation Instructions.

During operation, voltage to compressor terminals must be within range in dicate d on unit n amepla te (a lso se e Tables 2A and 2B). On 3-ph as e uni ts, vo lta ge s be tw e en ph as es mu st be balanced within 2% and the current within 10%. Use the formula shown in Tables 2A and 2B, Note 2, on page 12 to determine the percentage of voltage imbalance. Operation on improper line v oltage or excessive phas e imbalance constitutes abuse and may cause damage to electrical components. Such operation invalidates any applicable Bryant warranty.

NOTE: If accessory thru-the-bottom connections and roof curbs are used, refer to the thru-the-bottom accessory installation instructions for information on wiring the unit.

—4—

Table 1 — Physical Data

UNIT SIZE 548F 036 048 060 072 NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb)

Unit

Al/Al* Al/Cu*

Economizer

Durablade EconoMi$er

Roof Curb†

COMPRESSOR

Quantity Oil (oz)

REFRIGERANT TYPE

Operating Charge (lb-oz)

OUTDOOR COIL

Rows...Fins/in. Total Face Area (sq ft)

OUTDOOR FAN

Nominal Cfm Quantity...Diameter (in.) Motor Hp...Rpm Watts Input (Total)

INDOOR COIL

Rows...Fins/in. Total Face Area (sq ft)

INDOOR FAN

Quantity...Size (in.) Std

Type Drive Std

Nominal Cfm Maximum Continuous Bhp Std

Motor Frame Size Std

Nominal Rpm High/Low Std

Fan Rpm Range Std

Motor Bearing Type Maximum Allowable Rpm Motor Pulley Pitch Diameter Min/Max (in.) Std

Nominal Motor Shaft Diameter (in.) Std

Fan Pulley Pitch Diameter (in.) Std

Belt, Quantity...Type...Length (in.) Std

Pulley Center Line Distance (in.) Std

Speed Change per Full Turn of

Movable Pulley Flange (rpm) Std

Movable Pulley Maximum Full Turns

From Closed Position Std

Factory Setting Std

Factory Speed Setting (rpm) Std

Fan Shaft Diameter at Pulley (in.)

HIGH-PRESSURE SWITCH (psig)

Standard Compressor Internal Relief (Differential) Cutout Reset (Auto.)

LOSS OF CHARGE (Low Pressure) SWITCH (psig)

Cutout Reset (Auto.)

FREEZE PROTECTION THERMOSTAT (F)

Opens Closes

OUTDOOR-AIR INLET SCREENS

Quantity...Size (in.)

RETURN-AIR FILTERS

Quantity...Size (in.)

LEGEND

Al — Bhp — Cu —

Aluminum Brake Horsepower Copper

Alt High-Static

Reciprocating, Hermetic Scroll, Hermetic Scroll, Hermetic Scroll, Hermetic

3 456

500 520 550 590

— ———

34 34 34 34 47 47 47 47

115 115 115 115

1 111

45 42 50 54

5-1 6-0 8-0 11-2

Enhanced Copper Tubes, Aluminum Lanced Fins, Fixed Orifice Feed Device

1...17 1...17 2...17 2...17

10.31 14.58 12.25 16.53

4000 4000 4000 4000

1...22.0 1...22.0 1...22.0 1...22.0

/4...1100

325 325 325 325

Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Fixed Orifice Feed Device

2...15 2...15 3...15 3...15

4.2 4.2 5.5 5.5

1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10

1...10 x 10 1...10 x 10 1...10 x 10 —

1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10 Direct Direct Direct Belt

Belt Belt Belt — Belt Belt Belt Belt

1200 1600 2000 2400

.34 .75 1.20 2.40

1.00 1.00 1.30/2.40** —

2.40 2.40 2.90 2.90 48 48 48 56 48 48 56 — 56 56 56 56

860/800 1075/970 1075/970 —

1620 1620 1725 — 1725 1725 1725 1725

— — — 1070-1460

760-1000 835-1185 900-1300 —

1075-1455 1075-1455 1300-1685 1300-1685

Ball Ball Ball Ball

2100 2100 2100 2100

— — — 2.8/3.8

1.9/2.9 1.9/2.9 2.4/3.4 —

2.8/3.8 2.8/3.8 3.4/4.4 3.4/4.4

———4.5

4.5 4.0 4.5 —

4.5 4.5 4.5 4.5 — — — 1...A...40

1...A...34 1...A...34 1...A...39 —

1...A...39 1...A...39 1...A...40 1...A...40 — — — 14.7-15.5

10.0-12.4 10.0-12.4 14.7-15.5 —

10.0-12.4 10.0-12.4 14.7-15.5 14.7-15.5

———80 48 70 80 — 65 65 60 60

———5

555— 6 655

———3

333—

— — — 1225 856 975 1060 —

1233 1233 1396 1396

*Indoor coil fin material/outdoor coil fin material.

†Weight of 14-in. roof curb.

**Single phase/three phase.

R-22

Propeller Type

/4...1100

Centrifugal Type

31/

450 ± 50

428 320

7 ± 3

22 ± 5

30 ± 5 45 ± 5

Cleanable

1...20 x 24 x 1 Throwaway

2...16 x 25 x 2

/4...1100

1/ 5/ 5/

31/

/4...1100

2 8 8

31/

—

—5—

)

″

)

″

, 1

REQUIRED

″

CRBTMPWR002A00

REQUIRED FOR USE WITH ACCESSORY

BOTTOM POWER CHART, THESE HOLES

THREADED

PACKAGES CRBTMPWR001A00 (

HOLE

SIZES

(MAX.)

USE

WIRE

SIZE

CONDUIT

[22.2]

″

24 V

″

[28.4]

″

Pow er* 1

″

[44.4]

″

Pow er* 1

″

for power, depend-

″

or 1

″

ing on wire size.

*Select either

Dia [35] Field Power Supply Hole

″

CONNECTION SIZESA1

(D)

WEIGHT

CORNER

(C)

WEIGHT

CORNER

(B)

WEIGHT

CORNER

(A)

WEIGHT

CORNER

Dia [51] Power Supply Knockout

″

Dia [44] Charging Port Hole

″

Dia [64] Power Supply Knockout

Dia [22] Field Control Wiring Hole

— 14 NPT Condensate Drain

″

Fig. 5 — Base Unit Dimensions

125 57 120 54 125 57 130 59

STANDARD

ECONOMI$ER

DURABLADE

UNIT

WEIGHT

ECON. WEIGHT

WEIGHT

548F

[470] up from the bottom of the base

″

-6

′

34 15.4 47 21.3

Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg

500 227

520 236 130 59 125 57 130 59 135 61

550 249 138 63 132 60 130 62 142 64

590 268 148 68 142 64 148 67 152 69

036

048

060

072

1. Dimensions in [ ] are in millimeters.

2. Cent er of gravity.

NOTES:

on horizontal discharge units with electric heat 1 in. clearance to duct-

work for 1 ft.

side getting the greater clearance is optional.

Code).

NEC.

faces, control box side, 42 in. per NEC.

f. Between unit and block or concrete walls and other grounded sur-

c. Overhead, 60 in. to assure proper outdoor fan operation.

b. Outdoor coil, for proper airflow, 36 in. one side, 12 in. the other. The

a. Bottom of unit to combustible surfaces (when not using curb) 0 inch,

3. Direction of airflow.

4. Ductwork to be attached to accessory roof curb only.

5. Minimum clearance (local codes or jurisdiction may prevail):

e. Between unit and ungrounded surfaces, control box side, 36 in. per

d. Between units, control box side, 42 in. per NEC (National Electrical

g. Horizontal supply and return end, 0 inches.

6. With the exception of the clearance for the outdoor coil and combustion side

as stated in Notes 5a, b, and c, a removable fence or barricade requires no

clearance.

rail.

or C roof covering material if set on base rail.

7. Units may be installed on combustible floors made from wood or Class A, B,

8. The vertical center of gravity is 1

—6—

208/230-1-60

208/230-3-60

(SIZES 036 AND 048)

208/230-3-60

460-3-60

(SIZES 060 AND 072)

460-3-60

(SIZES 036 AND 048)

575-3-60

(SIZE 036 AND 048)

LEGEND

C— COMP — IFC — NEC —

Contactor Compressor Indoor Fan Contactor National Electrical Code

(SIZES 060 AND 072)

Fig. 6 — Power Wiring Connections

—7—

575-3-60

Table 2A — Electrical Data (Units Without Electrical Convenience Outlet)

UNIT 548F

036

(3 Tons)

048

(4 Tons)

NOTE:

NOMINAL

V-P H- Hz

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

Legend and Notes for Electrical Data are on page 12.

IFM

TYPE

STD 187 254 16.4 96.0 1.5 3.1

ALT 187 254 16.4 96.0 1.5 4.9

STD 187 254 10.2 75.0 1.5 3.1

ALT 187 254 10.2 75.0 1.5 4.9

HIGH-STATIC 187 254 10.2 75.0 1.5 5.8

STD 414 508 4.8 40.0 0.8 1.7

ALT 414 508 4.8 40.0 0.8 2.1

HIGH-STATIC 414 508 4.8 40.0 0.8 2.6

STD 518 632 3.8 31.0 0.8 1.7 — — 6.4 15†† 6 35 ALT 518 632 3.8 31.0 0.8 2.1 — — 7.1 15†† 7 37

HIGH-STATIC 518 632 3.8 31.0 0.8 2.6 — — 7.5 15†† 7 49

STD 187 254 23.4 110.0 1.5 3.5

ALT 187 254 23.4 110.0 1.5 4.9

STD 187 254 14.1 103.0 1.5 3.5

ALT 187 254 14.1 103.0 1.5 4.9

HIGH-STATIC 187 254 14.1 103.0 1.5 5.8

VOLTAGE

RANGE

Min Max RLA LRA

COMPRESSOR

(each)

OFM

FLA

ELECTRIC

IFM

FLA

HEAT*

Nominal

kW**

— — 25.5/ 25.5 30/ 30†† 25/ 25 107/107

3.3/ 4.4 15.9/18.3 45.4/ 48.4 50/ 50†† 43/ 46 123/125

4.9/ 6.5 23.6/27.1 55.0/ 59.4 60/ 60†† 52/ 56 131/184

6.5/ 8.7 31.3/36.3 64.6/ 70.9 70/ 80 61/ 66 138/143

7.9/10.5 38.0/43.8 73.0/ 80.3 80/ 90 68/ 75 145/151

9.8/13.0 47.1/54.2 84.4/ 93.3 90/100 79/ 87 154/161|| — — 26.9/ 26.9 30/ 30†† 26/ 26 111/111

3.3/ 4.4 15.9/18.3 46.8/ 49.8 50/ 50†† 45/ 47 127/130

4.9/ 6.5 23.6/27.1 56.4/ 60.8 60/ 70 53/ 57 135/138

6.5/ 8.7 31.3/36.3 66.0/ 72.3 70/ 80 62/ 68 143/148

7.9/10.5 38.0/43.8 74.4/ 81.7 80/ 90 70/ 77 149/155

9.8/13.0 47.1/54.2 85.8/ 94.7 90/100 80/ 89 158/166|| — — 17.8/ 17.8 20/ 20†† 17/ 17 86/ 86

3.3/ 4.4 9.2/10.6 29.3/ 31.0 30/ 35†† 28/ 30 95/ 97

4.9/ 6.5 13.6/15.6 34.8/ 37.3 35/ 40†† 33/ 35 100/102

6.5/ 8.7 18.0/20.9 40.3/ 43.9 45/ 45†† 38/ 42 104/107

7.9/10.5 21.9/25.3 45.1/ 49.4 50/ 50†† 43/ 47 108/111

12.0/16.0 33.3/38.5 59.4/ 65.9 60/ 70 56/ 62 119/124 — — 19.2/ 19.2 20/ 20†† 19/ 19 90/ 90

3.3/ 4.4 9.2/10.6 30.7/ 32.4 35/ 35†† 30/ 31 100/101

4.9/ 6.5 13.6/15.6 36.2/ 38.7 40/ 40†† 35/ 37 104/106

6.5/ 8.7 18.0/20.9 41.7/ 45.3 45/ 50†† 40/ 43 108/111

7.9/10.5 21.9/25.3 46.5/ 50.8 50/ 60†† 44/ 48 112/116

12.0/16.0 33.3/38.5 60.8/ 67.3 70/ 70 57/ 63 124/129 — — 20.1/ 20.1 25/ 25†† 20/ 20 120/120

3.3/ 4.4 9.2/10.6 31.6/ 33.3 35/ 35†† 31/ 32 129/130

4.9/ 6.5 13.6/15.6 37.1/ 39.6 40/ 40†† 36/ 38 133/135

6.5/ 8.7 18.0/20.9 42.6/ 46.2 45/ 50†† 41/ 44 138/141

7.9/10.5 21.9/25.3 47.4/ 51.7 50/ 60†† 45/ 49 142/145

12.0/16.0 33.3/38.5 61.7/ 68.2 70/ 70 58/ 64 153/158 — — 8.1 15†† 8 45

6.0 7.2 12.1 20†† 16 52

8.8 10.6 21.4 25†† 20 55

11.5 13.8 25.4 30†† 24 59

14.0 16.8 29.1 30†† 27 62 — — 8.9 15†† 9 48

6.0 7.2 17.9 20†† 17 55

8.8 10.6 22.2 25†† 21 59

11.5 13.8 26.2 30†† 25 62

14.0 16.8 29.9 30†† 28 65 — — 9.4 15†† 9 62

6.0 7.2 18.4 20†† 18 70

8.8 10.6 22.7 25†† 22 73

11.5 13.8 26.7 30†† 25 76

14.0 16.8 30.4 35†† 29 79

— — 34.3/ 34.3 35/ 35†† 33/ 33 121/121

3.3/ 4.4 15.9/18.3 54.1/ 57.1 60/ 60†† 51/ 54 137/139

6.5/ 8.7 31.3/36.3 73.4/ 79.6 80/ 80 69/ 74 152/157

9.8/13.0 47.1/54.2 93.1/102.0 100/110 87/ 95 168/175||

13.1/17.4 63.0/72.5 113.0/124.9 125/125 105/116 184/193||

15.8/21.0 76.0/87.5 129.3/143.6 150/150 120/133 197/208|| — — 35.7/ 35.7 40/ 40†† 34/ 34 125/125

3.3/ 4.4 15.9/18.3 55.5/ 58.5 60/ 60†† 53/ 55 141/144

6.5/ 8.7 31.3/36.3 74.8/ 81.0 80/ 90 70/ 76 157/162

9.8/13.0 47.1/54.2 94.5/103.4 100/110 88/ 97 172/180||

13.1/17.4 63.0/72.5 114.4/126.3 125/150 107/118 188/198||

15.8/21.0 76.0/87.5 130.7/145.0 150/150 122/135 201/213|| — — 22.6/ 22.6 25/ 25†† 22/ 22 114/114

4.9/ 6.5 13.6/15.6 39.6/ 42.1 45/ 45†† 38/ 40 127/129

6.5/ 8.7 18.0/20.9 45.1/ 48.8 50/ 50†† 43/ 46 132/135

12.0/16.0 33.3/38.5 64.3/ 70.8 70/ 80 60/ 66 147/152

15.8/21.0 43.9/50.5 77.5/ 85.8 80/ 90 72/ 80 158/164|| — — 24.0/ 24.0 25/ 25†† 24/ 24 118/118

4.9/ 6.5 13.6/15.6 41.0/ 43.5 45/ 45†† 39/ 42 132/134

6.5/ 8.7 18.0/20.9 46.5/ 50.2 50/ 60†† 44/ 48 136/139

12.0/16.0 33.3/38.5 65.7/ 72.2 70/ 80 62/ 68 152/157

15.8/21.0 43.9/50.5 78.9/ 87.2 80/ 90 74/ 82 162/169|| — — 28.3/ 28.3 30/ 30†† 28/ 28 136/136

4.9/ 6.5 13.6/15.6 45.3/ 47.8 50/ 50†† 43/ 46 149/151

6.5/ 8.7 18.0/20.9 50.8/ 54.4 60/ 60†† 48/ 52 154/157

12.0/16.0 33.3/38.5 69.9/ 76.4 70/ 80 66/ 72 169/174

15.8/21.0 43.9/50.5 83.2/ 91.4 90/100 78/ 86 180/186||

FLA MCA MOCP FLA LRA

POWER SUPPLY

DISCONNECT

SIZE†

—8—

Table 2A — Electrical Data (Units Without Electrical Convenience Outlet) (cont)

UNIT 548F

048

(4 Tons)

(cont)

060

(5 Tons)

072

(6 Tons)

Legend and Notes for Elect rical Data are on p age 12.

NOTE:

NOMINAL

V-P H- H z

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

HIGH-STATIC 414 508 7.1 52.5 0 .8 2.6

HIGH-STATIC 518 632 6.0 44.0 0 .8 2.6 — — 11.1 15†† 11 55

HIGH-STATIC 187 254 15.4 12 4.0 1.5 7.5

HIGH-STATIC 414 508 7.7 59.6 0 .8 3.4

HIGH-STATIC 518 632 6.2 49.4 0 .8 3.4 — — 11.1 15†† 11 75

HIGH-STATIC 187 254 22.7 14 6.0 1.4 7.5

HIGH-STATIC 414 508 11.4 73.0 0.7 3.4

HIGH-STATIC 518 632 9.1 58.4 0 .7 3.4 — — 14.7 15†† 14 84

VO LTAG E

IFM

TYPE

STD 414 50 8 7.1 5 2.5 0.8 1.8

ALT 414 50 8 7.1 52.5 0.8 2.1

STD 518 632 6.0 44.0 0.8 1.8 — — 9.6 15†† 9 49 ALT 518 632 6.0 44.0 0.8 2.1 — — 9.8 15†† 10 50

STD 187 25 4 26.7 170.0 1 .5 5.9

ALT 187 25 4 26.7 170.0 1 .5 8 .8

STD 187 25 4 15.4 124.0 1 .5 5.9

ALT 187 25 4 15.4 124.0 1 .5 5 .8

STD 414 50 8 7.7 5 9.6 0.8 3.2

ALT 414 50 8 7.7 59.6 0.8 2.6

STD 518 63 2 6.2 4 9.4 0.8 3.2 — — 11 .0 15†† 11 56 ALT 518 63 2 6.2 49.4 0.8 2.6 — — 10.5 15†† 1 0 67

STD 187 25 4 22.7 146.0 1 .4 5.8

STD 414 50 8 11.4 73.0 0.7 2.6

STD 518 63 2 9.1 5 8.4 0.7 2.6 — — 14 .0 15†† 14 76

RANGE

Min Max RLA LRA

COMPRESSOR

(each)

OFM FLA

IFM

FLA

ELECTRIC

HEAT*

Nominal

kW**

— — 11 .5 15†† 11 59

6.0 7.2 20.5 25 †† 19 66

11.5 13. 8 28.7 30†† 27 73

14.0 16. 8 32.5 35†† 30 76

23.0 27. 7 46.1 50†† 43 86 — — 11 .8 15†† 12 61

6.0 7.2 20.8 25 †† 20 68

11.5 13. 8 29.0 30†† 27 74

14.0 16. 8 32.8 35†† 31 77

23.0 27. 7 46.4 50†† 43 88 — — 13 .9 15†† 14 72

6.0 7.2 22.9 25 †† 22 80

11.5 13. 8 31.2 35†† 29 86

14.0 16. 8 34.9 35†† 33 89

23.0 27. 7 48.5 50†† 45 100

— — 40.8/ 40.8 45/ 45†† 39/ 39 184/184

4.9/ 6.5 23.6/27.0 70.3/ 74.7 80/ 80 66/ 70 208/211

6.5/ 8.7 31.3/36.3 79.9/ 86.2 80/ 90 75/ 81 215/220||

9.8/13.0 47.1/54.2 99.7/108.5 100/110 93/102 231/238||

13.1/17.4 63.0/72.5 119.5/13 1.4 125/ 150 112/123 24 7/257||

15.8/21.0 76.0/87.5 135.8/15 0.2 150/ 175 127/140 26 0/272|| — — 48.5/ 48.5 50/ 50†† 48/ 48 222/222

4.9/ 6.5 23.6/27.1 78.0/ 82.4 80/ 90 75/ 79 246/249

6.5/ 8.7 31. 3/36.3 87.6/ 93.9 90/100 84/ 90 253/258||

9.8/13.0 47.1/54.2 107.4/11 6.2 110/ 125 102/110 26 9/276||

13.1/17.4 63.0/72.5 127.2/13 9.1 150/ 150 121/131 28 5/294||

15.8/21.0 76.0/87.5 143.5/15 7.9 150/ 175 135/149 29 8/309|| — — 26.7/ 26.7 30/ 30†† 26/ 26 138/138

4.9/ 6.5 13. 6/15.6 43.7/ 46.2 45/ 50†† 42/ 44 152/154

7.9/10.5 21.9/25.3 54.0/ 58.3 60/ 60†† 51/ 55 16 0/163

12.0/16.0 33.3/38.5 68.3/ 74.8 70/ 80 65/ 70 171/17 7

15.8/21.0 43.9/50.5 81.5/ 89.8 90/ 90 77/ 84 182/18 9||

19.9/26.5 55.2/63.8 95.7/106.4 100/110 90/100 193/202|| — — 26.6/ 26.6 30/ 30†† 26/ 26 169/169

4.9/ 6.5 13. 6/15.6 43.6/ 46.1 45/ 50†† 42/ 44 182/184

7.9/10.5 21.9/25.3 53.9/ 58.2 60/ 60 51/ 55 191/19 4

12.0/16.0 33.3/38.5 68.2/ 74.7 70/ 80 64/ 70 202/20 7

15.8/21.0 43.9/50.5 81.4/ 89.7 90/ 90 77/ 84 213/21 9||

19.9/26.5 55.2/63.8 95.6/10 6.3 100/1 10 90/ 99 224/233|| — — 28.3/ 28.3 30/ 30†† 28/ 28 188/188

4.9/ 6.5 13. 6/15.6 45.3/ 47.8 50/ 50†† 44/ 46 201/203

7.9/10.5 21.9/25.3 55.6/ 59.9 60/ 60†† 53/ 57 21 0/213

12.0/16.0 33.3/38.5 69.9/ 76.4 70/ 80 66/ 72 221/22 6

15.8/21.0 43.9/50.5 83.1/ 91.4 90/100 79/ 86 232/23 8||

19.9/26.5 55.2/63.8 97.3/108.0 100/110 92/101 243/252|| — — 13 .6 15†† 13 67

6.0 7.2 22.6 25 †† 22 75

11.5 13. 8 30.9 35†† 29 81

14.0 16. 8 34.6 35†† 33 84

23.0 27. 7 48.3 50†† 45 95

25.5 30. 7 52.0 60†† 49 98 — — 13 .0 15†† 13 82

6.0 7.2 22.0 25 †† 21 89

11.5 13. 8 30.3 35†† 29 96

14.0 16. 8 34.0 35†† 32 99

23.0 27. 7 47.7 50†† 45 110

25.5 30. 7 51.4 60†† 48 113 — — 13 .8 15†† 14 92

6.0 7.2 22.8 25 †† 22 99

11.5 13. 8 31.1 35†† 30 105

14.0 16. 8 34.8 35†† 33 108

23.0 27. 7 48.5 50†† 46 119

25.5 30. 7 52.2 60†† 49 122

— — 35.6/ 35.6 40/ 40†† 34/ 34 190/190

4.9/ 6.5 13. 6/15.6 52.6/ 55.1 60/ 60†† 50/ 52 204/206

7.9/10.5 21.9/25.3 63.0/ 67.2 70/ 70 60/ 63 212/21 5

12.0/16.0 33.3/38.5 77.2/ 83.7 80/ 90 73/ 79 223/22 9

15.8/21.0 43.9/50.5 90.5/ 98.7 100/100 85/ 92 234/241||

19.9/26.5 55.2/63.8 104.6/11 5.3 110/ 125 98/1 08 24 5/254|| — — 37.3/ 37.3 40/ 40†† 36/ 36 209/209

4.9/ 6.5 13. 6/15.6 54.3/ 56.8 60/ 60†† 52/ 54 223/225

7.9/10.5 21.9/25.3 64.7/ 68.9 70/ 70 62/ 65 231/23 4

12.0/16.0 33.3/38.5 78.9/ 85.4 80/ 90 75/ 81 242/24 8||

15.8/21.0 43.9/50.5 92.2/10 0.4 100/1 10 87/ 94 253/260||

19.9/26.5 55.2/63.8 106.3/11 7.0 110/ 125 100/110 26 4/273|| — — 17 .6 20†† 17 95

6.0 7.2 26.6 30 †† 25 102

11.5 13. 8 34.8 35†† 33 109

14.0 16. 8 38.6 40†† 36 112

23.0 27. 7 52.2 60†† 49 123

25.5 30. 7 55.9 60†† 52 126 — — 18 .4 20†† 18 1 05

6.0 7.2 27.4 30 †† 26 112

11.5 13. 8 35.6 40†† 34 118

14.0 16. 8 39.4 40†† 37 121

23.0 27. 7 53.0 60†† 50 132

25.5 30. 7 56.7 60†† 53 135

FLA MCA MOCP FLA LRA

POWER SUPPLY

DISCONNECT

SIZE†

—9—

Table 2B — Electrical Data (Units With Electrical Convenience Outlet)

UNIT 548F

036

(3 Tons)

048

(4 Tons)

NOTE:

NOMINAL

V-P H- Hz

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

Legend and Notes for Electrical Data are on page 12.

IFM

TYPE

STD 187 254 16.4 96.0 1.5 3.1

ALT 187 254 16.4 96.0 1.5 4.9

STD 187 254 10.2 75.0 1.5 3.1

ALT 187 254 10.2 75.0 1.5 4.9

HIGH-STATIC 187 254 10.2 75.0 1.5 5.8

STD 414 508 4.8 40.0 0.8 1.7

ALT 414 508 4.8 40.0 0.8 2.1

HIGH-STATIC 414 508 4.8 40.0 0.8 2.6

STD 518 632 3.8 31.0 0.8 1.7 — — 8.2 15†† 8 37 ALT 518 632 3.8 31.0 0.8 2.1 — — 8.8 15†† 9 39

HIGH-STATIC 518 632 3.8 31.0 0.8 2.6 — — 9.2 15†† 9 51

STD 187 254 23.4 110.0 1.5 3.5

ALT 187 254 23.4 110.0 1.5 4.9

STD 187 254 14.1 103.0 1.5 3.5

ALT 187 254 14.1 103.0 1.5 4.9

HIGH-STATIC 187 254 14.1 103.0 1.5 5.8

VO LTAG E

RANGE

Min Max RLA LRA

COMPRESSOR

(each)

OFM

FLA

ELECTRIC IFM FLA

HEAT*

Nominal

kW**

— — 30.3/ 30.3 35/ 35†† 30/ 30 112/112

3.3/ 4.4 15.9/18.3 50.2 53.2 60/ 60†† 48/ 51 128/130

4.9/ 6.5 23.6/27.1 59.8/ 64.2 70/ 70 57/ 61 135/139

6.5/ 8.7 31.3/36.3 69.4/ 75.7 70/ 80 66/ 72 143/148

7.9/10.5 38.0/43.6 77.8/ 85.1 80/ 90 74/ 81 150/156||

9.8/13.0 47.1/54.2 89.2/ 98.1 90/100 84/ 72 159/166|| — — 31.7/ 31.7 35/ 35†† 32/ 32 116/116

3.3/ 4.4 15.9/18.3 51.6/ 54.6 60/ 60†† 50/ 53 132/134

4.9/ 6.5 23.6/27.1 61.2/ 65.6 70/ 70 59/ 63 140/143

6.5/ 8.7 31.3/36.3 70.8/ 77.1 80/ 80 68/ 73 147/152

7.9/10.5 38.0/43.6 79.2/ 86.5 80/ 90 75/ 82 154/160||

9.8/13.0 47.1/54.2 90.6/ 99.5 100/110 86/ 94 163/170|| — — 22.6/ 22.6 25/ 25†† 23/ 23 91/ 91

3.3/ 4.4 9.2/10.6 34.1/ 35.8 40/ 40†† 34/ 35 100/101

4.9/ 6.5 13.6/15.6 39.6/ 42.1 45/ 45†† 39/ 41 104/106

8.5/ 8.7 18.0/20.9 45.1/ 48.7 50/ 50†† 44/ 47 109/112

7.9/10.5 21.9/25.3 49.9/ 54.2 60/ 60†† 48/ 52 113/116

12.0/16.0 33.3/38.5 64.2/ 70.7 70/ 80†† 61/ 67 124/129

——

3.3/ 4.4 9.2/10.6 35.5/ 37.2 40/ 40†† 35/ 37 104/106

4.9/ 6.5 13.6/15.6 41.0/ 43.5 45/ 45†† 40/ 43 109/111

6.5/ 8.7 18.0/20.9 46.5/ 50.1 50/ 60†† 45/ 49 113/116

7.9/10.5 21.9/25.3 51.3/ 55.6 60/ 60†† 50/ 54 117/120

12.0/16.0 33.3/38.5 65.6/ 72.1 70/ 80 63/ 69 128/134 — — 24.9/ 24.1 25/ 25†† 26/ 26 125/125

3.3/ 4.4 9.2/10.6 36.4/ 38.1 40/ 40†† 36/ 38 134/135

4.9/ 6.5 13.6/15.6 41.9/ 44.4 45/ 45†† 41/ 44 138/140

6.5/ 8.7 18.0/20.9 47.4/ 51.0 50/ 50†† 46/ 50 143/145

7.9/10.5 21.9/25.3 52.2/ 56.5 60/ 60†† 51/ 55 146/150

12.0/16.0 33.3/38.5 66.5/ 73.0 70/ 80 64/ 70 158/163 — — 10.3 15†† 10 47

6.0 7.2 19.3 20†† 19 54

8.8 10.6 23.5 25†† 23 58

11.5 13.8 27.5 30†† 26 61

14.0 16.8 31.3 35†† 30 64 — — 11.1 15†† 11 50

6.0 7.2 20.1 25†† 20 57

8.8 10.6 24.3 25†† 24 61

11.5 13.8 28.3 30†† 27 64

14.0 16.8 32.1 35†† 31 67 — — 11.6 15†† 12 65

6.0 7.2 20.6 25†† 20 72

8.8 10.6 24.8 25†† 24 75

11.5 13.8 28.8 30†† 28 78

14.0 16.8 32.6 35†† 31 81

— — 39.1/ 39.1 40/ 40†† 38/ 38 126/126

3.3/ 4.4 15.9/18.3 58.9/ 61.9 60/ 70 56/ 59 141/144

6.5/ 8.7 31.3/36.3 78.2/ 84.4 80/ 90 74/ 80 157/162||

9.8/13.0 47.1/54.2 97.9/106.8 100/110 92/101 173/180||

13.1/17.4 63.0/72.5 117.8/129.8 125/150 111/122 189/198||

15.8/21.0 76.0/87.5 134.1/148.4 150/150 126.139 202/213|| — — 40.5/ 40.5 45/ 45†† 40/ 40 130/130

3.3/ 4.4 15.9/18.3 60.3/ 63.35 70/ 70†† 58/ 61 146/148

6.5/ 8.7 31.3/36.3 79.6/ 85.8 80/ 90 76/ 82 161/166||

9.8/13.0 47.1/54.2 99.3/108.2 100/110 94/102 177/184||

13.1/17.4 63.0/72.5 119.2/131.1 125/150 112/123 193/203||

15.8/21.0 76.0/87.5 125.5/149.8 150/150 127/140 206/218|| — — 27.4/ 27.4 30/ 30†† 27/ 27 119/119

4.9/ 6.5 13.6/15.6 44.4/ 46.9 50/ 50†† 43/ 45 132/134

6.5/ 8.7 18.0/20.9 49.9/ 53.6 60/ 60†† 48/ 52 137/139

12.0/16.0 33.3/38.5 69.1/ 75.6 70/ 80 66/ 72 152/157

15.8/21.0 43.9/50.5 82.3/ 90.6 90/100 78/ 86 162/169|| — — 28.8/ 28.8 30/ 30†† 29/ 29 123/123

4.9/ 6.5 13.6/15.6 45.8/ 48.3 50/ 50†† 45/ 47 137/139

6.5/ 8.7 18.0/20.9 51.3/ 55.0 60/ 60†† 50/ 53 141/144

12.0/16.0 33.3/38.5 70.5/ 77.0 80/ 80 67/ 73 156/162

15.8/21.0 43.9/50.5 83.7/ 92.0 90/100 80/ 87 167/174|| — — 33.1/ 33.1 35/ 35†† 33/ 33 141/141

4.9/ 6.5 13.6/15.6 50.1/ 52.6 60/ 60†† 49/ 51 154/156

6.5/ 8.7 18.0/20.9 55.6/ 59.2 60/ 60†† 54/ 57 159/161

12.0/16.0 33.3/38.5 74.7/ 81.2 80/ 90 72/ 78 174/179

15.8/21.0 43.9/50.5 88.0/ 96.2 90/100 84/ 91 184/191||

FLA MCA MOCP FLA LRA

POWER SUPPLY

24.0/ 24.0 30/ 30†† 25/ 25 95/ 95

DISCONNECT

SIZE†

—10—

Table 2B — Electrical Data (Units With Electrical Convenience Outlet) (cont)

UNIT

548F

048

(4 Tons)

(cont)

060

(5 Tons)

072

(6 Tons)

Legend and Notes for Elect rical Data are on p age 12.

NOTE:

NOMINAL

V-P H- H z

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

HIGH-STATIC 4 14 508 7.1 52.5 0.8 2.6

HIGH-STATIC 518 832 6.0 44.0 0.8 2.6 — — 12.8 15†† 13 57

HIGH-STATIC 187 254 15.4 124.0 1.5 7.5

HIGH-STATIC 4 14 508 7.7 59.6 0.8 3.4

HIGH-STATIC 518 632 6.2 49.4 0.8 3.4 — — 12.9 15†† 13 77

HIGH-STATIC 187 254 22.7 146.0 1.4 7.5

HIGH-STATIC 414 508 11.4 73.0 0.7 3.4

HIGH-STATIC 518 632 9.1 58.4 0.7 3.4 — — 16.4 20†† 16 85

VO LTAG E

IFM

TYPE

STD 414 508 7.1 52.5 0.8 1.8

ALT 4 14 508 7.1 52.5 0.8 2.1

STD 518 632 6.0 44.0 0. 8 1.8 — — 11.3 15†† 11 51 ALT 518 832 6. 0 44.0 0.8 2. 1 — — 11.6 15†† 12 52

STD 187 254 26.7 170.0 1.5 5.9

ALT 187 254 26.7 170.0 1.5 8.8

STD 187 254 15.4 124.0 1.5 5.9

ALT 187 254 15.4 124.0 1.5 5.8

STD 414 508 7.7 59.6 0.8 3.2

ALT 4 14 508 7.7 59.6 0.8 2.6

STD 518 632 6.2 49.4 0.8 3.2 — — 12.7 15†† 13 57 ALT 518 632 6.2 49.4 0.8 2.6 — — 12.2 15†† 12 69

STD 187 254 22.7 146.0 1.4 5.8

STD 414 508 11.4 73.0 0.7 2.6

STD 518 632 9.1 58.4 0.7 2.6 — — 15.8 20†† 16 78

RANGE

Min Max RLA LRA

COMPRESSOR

(each)

OFM FLA

IFM FLA

ELECTRIC

HEAT*

Nominal

kW**

— — 13.7 15†† 14 61

6.0 7 .2 22.7 25†† 22 68

11.5 13.8 30.9 35†† 30 75

14.0 16.8 34.7 35†† 33 78

23.0 27.7 48.3 50†† 46 89 — — 14.0 15†† 14 63

6.0 7 .2 23.0 25†† 22 70

11.5 13.8 31.2 35†† 30 77

14.0 16.8 35.0 40†† 33 80

23.0 27.7 48.6 50†† 46 90 — — 16.1 20†† 16 75

6.0 7 .2 25.1 30†† 24 82

11.5 13.8 33.3 35†† 32 88

14.0 16.8 37.1 40†† 35 91

23.0 27.7 50.7 60†† 48 102

— — 45.6/ 45.6 50/ 50†† 4 5/ 45 189/189

4.9/ 6.5 23.6/27.1 75.1/ 79.5 80/ 80 72/ 76 213/216

6.5/ 8.7 31.3/36.3 84.7/ 91.0 90/100 81/ 86 220/225||

9.8/13.0 47.1/54.2 104.3/113.3 110/125 99/107 236/243||

13.1/17.4 63.0/72.5 12 4.3/136.2 150/150 117/128 252/261||

15.8/21.0 76.0/87.5 14 0.6/155.0 150/175 132/145 265/276|| — — 48.5/ 48.5 50/ 50†† 4 8/ 48 222/222

4.9/ 6.5 23.6/27.1 78.0/ 82.4 80/ 90 75/ 79 246/249

6.5/ 8.7 31.3/36.3 87.6/ 93.9 90/100 84/ 90 253/258||

9.8/13.0 47.1/54.2 10 7.4/116.2 110/125 102/110 269/276||

13.1/17.4 63.0/72.5 12 7.2/139.1 150/150 121/131 285/294||

15.8/21.0 76.0/87.5 14 3.5/157.9 150/175 135/149 298/309|| — — 31.5/ 31.5 35/ 35†† 3 2/ 32 143/143

4.9/ 6.5 13.6/15.6 48.5/ 51.0 50/ 60†† 47/ 50 157/159

7.9/10.5 21.9/25.3 58.8/ 63.1 60/ 70 57/ 61 165/168

12.0/16.0 33.3/38.5 73.1/ 79.6 80/ 90 70/ 76 1 76/181

15.8/21.0 43.9/50.5 86.3/ 94.6 90/100 82/ 90 187/193||

19.9/26.5 55.2/63.8 100.5/111.2 110/125 95/105 198/207|| — — 31.4/ 31.4 35/ 35†† 3 2/ 32 174/174

4.9/ 6.5 13.6/15.6 48.4/ 50.9 50/ 60†† 47/ 50 187/189

7.9/10.5 21.9/25.3 58.7/ 63.0 60/ 70 57/ 61 195/199

12.0/16.0 33.3/38.5 73.0/ 79.5 80/ 90 70/ 76 2 07/212

15.8/21.0 43.9/50.5 86.2/ 94.5 90/100 82/ 90 217/224||

19.9/26.5 55.2/63.8 100.4/111.1 110/125 95/105 229/237|| — — 33.1/ 33.1 35/ 35†† 3 4/ 34 193/193

4.9/ 6.5 13.6/15.6 50.1/ 52.6 60/ 60†† 49/ 52 206/208

7.9/10.5 21.9/25.3 60.4/ 64.7 70/ 70 59/ 63 214/218

12.0/16.0 33.3/38.5 74.7/ 81.2 80/ 90 72/ 78 2 26/231

15.8/21.0 43.9/50.5 87.9/ 96.2 90/100 84/ 92 236/243||

19.9/26.5 55.2/63.8 102.1/112.8 110/125 97/107 248/256|| — — 15.8 20†† 16 70

6.0 7 .2 24.8 30†† 24 77

11.5 13.8 33.1 35†† 32 83

14.0 16.8 36.8 40†† 35 86

23.0 27.7 50.4 60†† 48 97

25.5 30.7 54.2 60†† 51 100 — — 15.2 20†† 15 84

6.0 7 .2 24.2 30†† 24 91

11.5 13.8 32.5 35†† 31 98

14.0 16.8 36.2 40†† 35 101

23.0 27.7 49.8 60†† 47 112

25.5 30.7 53.6 60†† 51 115 — — 16.0 20†† 16 94

6.0 7 .2 25.0 25†† 24 101

11.5 13.8 33.3 35†† 32 107

14.0 16.8 34.8 35†† 33 108

23.0 27.7 50.6 60†† 48 121

25.5 30.7 54.4 60†† 51 124

— — 40.4/ 40.4 45/ 45†† 4 0/ 40 195/195

4.9/ 6.5 13.6/15.6 57.4/ 59.9 60/ 60†† 56/ 58 208/211

7.9/10.5 21.9/25.3 67.8/ 72.0 70/ 80 65/ 69 217/220

12.0/16.0 33.3/38.5 82.0/ 88.5 90/ 90 78/ 84 2 28/233||

15.8/21.0 43.9/50.5 95.3/1 03.5 100/110 9 0/ 98 239/245||

19.9/26.5 55.2/63.8 10 9.4/120.1 110/125 103/113 250/259|| — — 42.1/ 42.1 45/ 45†† 4 2/ 42 214/214

4.9/ 6.5 13.6/15.6 59.1/ 61.6 60/ 70 58/ 60 227/229

7.9/10.5 21.9/25.3 69.5/ 73.7 70/ 80 67/ 71 236/239

12.0/16.0 33.3/38.5 83.7/ 90.2 90/100 80/ 86 247/252||

15.8/21.0 43.9/50.5 97.0/1 05.2 100/110 9 2/100 258 /264||

19.9/26.5 55.2/63.8 11 1.1/121.8 125/125 105/115 269/278|| — — 19.7 20†† 19 97

6.0 7 .2 28.7 30†† 28 104

11.5 13.8 37.0 40†† 35 111

14.0 16.8 40.7 45†† 39 114

23.0 27.7 54.4 60†† 51 125

25.5 30.7 58.1 60†† 55 128 — — 20.5 25†† 20 107

6.0 7 .2 29.5 30†† 29 114

11.5 13.8 37.8 40†† 36 121

14.0 16.8 41.5 45†† 40 124

23.0 27.7 55.2 60†† 52 134

25.5 30.7 58.9 60†† 56 137

FLA MCA MOCP FLA LRA

POWER SUPPLY

DISCONNECT

SIZE†

—11—

LEGEND FOR TABLES 2A AND 2B

FLA — HACR — IFM — LRA — MCA — MOCP — NEC — OFM — RLA —

*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, or 480 v. If

power distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly.

†Used to determine minimum disconnect per NEC.

**Heaters are field installed only.

††Fuse or HACR circuit breaker.

Electrical disconnect cannot be used if electric heater is installed. (Applies to

any line with an FLA greater than or equal to 80.)

NOTES:

1. In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker.

2. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%.

imbalance.

LEGEND

Full Load Amps Heating, Air Conditioning and Refrigeration Indoor-Fan Motor Locked Rotor Amps Minimum Circuit Amps Maximum Overcurrent Protection National Electrical Code Outdoor-Fan Motor Rated Load Amps

Use the following formula to determine the percentage of voltage

% Voltage Imbalance

= 100 x

Example: Supply voltage is 460-3-60.

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v (BC) 464 – 457 = 7 v

(AC) 457 – 455 = 2 v Maximum deviation is 7 v. Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT:

tact your local electric utility company immediately.

max voltage deviation from average voltage

AB = 452 v BC = 464 v AC = 455 v

If the supply voltage phase imbalance is more than 2%, con-

average voltage

Average Voltage =

= 457

7 457

= 1.53%

452 + 464 + 455

1371

—12—

B. Field Control Wiring

Install a Bryant-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat asse mbly on a solid wall in the conditioned space to sense average temperature in accordance with thermostat installation instructions.

NOTE: If using Bryant electronic thermostat, set thermostat configuration f or “non-hea t pump opera tion.” The use of the O terminal is not required to energize the reversing valve in this family of products.

Route thermostat cable or equivalent single leads of colored wire from subb ase term inals to low-voltage conne ctions on unit (shown in Fig. 7) as described in Steps 1 through 3 below.

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft, use no. 16 AWG insulated wire (35 C minimum). For over 75 ft, use no. 14 AWG insulated wire (35 C minimum). All wire larger than no. 18 AWG cannot be dire ctly c onn ected to the thermostat and will require a junction box and splice at the thermostat.

Fig. 8 — Field Control Wiring Raceway

†

AHA — CC —

LEGEND

Adjustable Heat Anticipator Cooling Compensator Field Wiring Factory Wiring

*Used with economizer. †Used with 2-stage electric heater.

Fig. 7 — Low-Voltage Connections With or

Without Economizer or Two-Position Damper

1. Connect thermostat wires to screw terminals of low voltage connection board.

2. Pass the control wires through th e hole provided in the corner post.

3. Feed wire through the raceway built into the corner post to the 24-v barrier located on the l eft side of the control box. See Fig. 8. The raceway provides the ULrequired clearance between the high- and low-voltage wiring.

C. Defrost Board

The defrost board timer is set for a 30 minute defrost cycle from the factor y. T o a djust to a 50 or 90 minute cycle , remove the wire connected to the 30 minute quick connect on the defrost board. See Fig . 9. Connect lead to t he 50 or 90 minut e quick connect on the defrost board, depending on the application.

D. Heat Anticipator Settings

Set first-stage heat anticipator setting at 0.8 and set secondstage heat anticipator settin g at 0.3.

Fig. 9 — Defrost Board

VI. STEP 6 — ADJUST FACTORY-INSTALLED OPTIONS

A. Disconnect Switch

The optional disconnect switch is non-fused. The switch has the capability of being locked in place for safety purposes. The disconnect switch is only available for limited applications. See electrical data tables on pages 8-12 for disconnect switch usage.

B. Optional Durablade Economizer

The optional economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are installed at the factory and the economizer is shipped in the vertical discharge position.

NOTE: Horizontal discharge block-off plate is shipped with the air hood package. If unit is to be used for vertical discharge application, discard this plate.

—13—

Assembly

1. Determine if ventilation air is required in building. If so, determine the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 7.

2. Remove filter access panel by raising panel and swinging panel outward. Panel is now disengaged from track an d can be removed. No tools are required to remove filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 10. Remove optional outd oor-air ho od pa cka ge from fil te r section.

3. Assemble outdoor-air hood top and side plates as shown in Fig. 11. Install seal strips on hoop top and sides. Put aside screen retainer and retainer screw for later assembly. Do not attach hood to unit at this

time.

4. Economizer comes factory-installed in unit and secured with screws. See Fig. 12.

NOTE: Be sure rear economizer flange is engaged under tabs in vertical return-air opening. See Fig. 24.

Fig. 10 — Typical Access Panel Locations

Fig. 11 — Outdoor-Air Hood Details

U-SHAPED HOLE (NOT SHOWN)

ECONOMIZER CONTROL BOARD

ECONOMIZER PLUG

WIRING HARNESS

BAROMETRIC RELIEF DAMPER

SHIPPING SCREW

ECONOMIZER MOTOR

POSITION SETTING BRACKET

TOP SCREW

Fig. 12 — Durablade Economizer Installed in Unit

5. To convert to horizontal discharge application: a. Rotate the eco nomizer 90 degrees u ntil the econ o-

mizer motor faces the outdoor section (see Fig. 13).

b. Remove shipping screw and tape and then rotate

the barometric relief damper hinge 90 degrees. Barometric relief damper should open vertically to operate properly.

c. Install horizontal discharge block-off plate over the

opening on the access panel. (Block-off plate MUST be installed before installing hood assembly.)

6. Remove existing 12-pin blue and yellow wire jumper plug and store. Insert 12-pin economizer plug into economizer harness. See Fig. 12.

7. If ventilation ai r is not req uired , proce ed to Step 8. If ventilation air is required, determine the minimum position setting for required airflow. See Fig. 14. Adjust minimum position setting by adjusting the screws on the position setting bracket. Slide bracket until the top screw is in the position determined b y Fig. 14. Tighten screws. See Fig. 15.

8. Remove tape from outdoo r-air thermost a t ( OAT). F a sten OAT to inside of hood using screws and speed clips provided. See Fig. 16. Make sure OAT terminals are positioned up.

9. Replace outdoor-air open ing panel usin g screws from Step 2. Replac e filter access panel. Ensure t he filter access panel slides along the tracks and is securely engaged.

10. Fasten hood top and side plate assembly (Fig. 11) to outdoor-air opening panel wit h s crews provided.

11. Place knob supplied with economizer on OAT. See Fig. 16. Set for 3° F below indoor room thermostat setting. If accessory enthalpy control (EC) i s used in place of OAT, see instructions shipped with EC for installation and adjustment . See F ig. 16.

12. Connect OAT per Fig. 17.

13. Slide outdoor-air inlet screen into screen track on hood side plate. While holding screen in place, fasten screen retainer to hood usi ng screws provided.

NOTE: Refer to Fig. 18 for economizer barometric relief damper characteristics.

—14—

SHIPPING

UNIT

TOP

OAT (TERMINALS ARE UP)

OUTSIDE AIR SCREEN

MINIMUM POSITION

OPEN

H U

M I

D I

T Y

DAMPER

CLOSED

OPEN

OUTDOOR TEMP

-367

–SETPOINTS

–CCW

CONT

CTS SHO

WN IN HIGH ENTHALPY

3 m

. A

T 1

1 VDC

CONT

ACT RA

TINGS: 1.5A

RUN, 3.5A IN

OR UNPO

WERED ST

TR1

ENTHALPY CONTROL

HOOD

SCREW

Fig. 13 — Horizontal Discharge Durablade

Economizer Installation

Example: Given — Negative Pressure . . . . . . . . . . .0.2 in. wg

Outdoor Air. . . . . . . . . . . . . . . . . . 900 cfm

Determine — Setting = 5 in.

Fig. 14 — Durablade Economizer

Minimum Position Setting

Fig. 15 — Durablade Economizer Minimum

Position Damper Setting

Fig. 16 — Outdoor-Air Thermostat/Enthalpy

Control Installation

OAT —

Outdoor-Air Thermostat

NOTE:

See unit wiring diagram for more details.

LEGEND

Fig. 17 — Wiring Connections for

Outdoor-Air Thermostat

—15—

0.90

OUTDOOR AIR OPENING PANEL

SEAL STRIP

EXHAUST AIR SCREEN

EXHAUST AIR HOOD TOP

SCREEN RETAINER

EXHAUST AIR HOOD SIDES

EXHAUST AIR BOTTOM BRACKET

0.80

0.70

0.60

0.50

0.40

0.30

PRESSURE DROP (in. wg)

0.20

0.10

4. Install the

/8 x 3/4 in. seal strip on the outdoor air hood top and side panels. Assemble the outdoor air hood to the outdoor air opening panel as shown in Fig. 22, using the screws provided. Do not attach hood

assembly to the unit at this time.

0.00

200 300 400

100

CFM

500 600

700

Fig. 18 — Durablade Economizer Barometric

Relief Damper Characteristics

C. Optional EconoMi$er

See Fig. 19 for EconoMi$er component locations.

1. To remove the existing unit filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the track and can be removed. Remove the indoor coil access panel and discard. See Fig. 20.

If installing an optional Power Exhaust Assembly, refer to the EconoMi$er Power Exhaust Installation Instructions.

Controller shou ld be mounted in ve rtical position as shown in Fig. 19.

2. Assemble the hood assembly as follows: Remove the EconoMi$er hood from its packaging.

Locate the outdoor air opening panel. See Fig. 21. Remove hood assembly shipping brackets located on the back (sloped) side of the EconoMi$er assembly. These brackets are used to r etain the h ood assemb ly during shipping only.

3. Install the

/8 x 3/4 in. seal strip on the exhaust air hood side panels and the bottom bracket. Assemble the exhaust air hood to the outdoor air opening panel as shown in Fig. 21, using the screws provided. Do

not attach hood assembly to unit at this time.

800

OUTDOOR-AIR OPENING PANEL

FILTER ACCESS PANEL

Fig. 20 — Typical Access Panel Locations

Fig. 21 — Exhaust Air Hood Assembly

ECONOMI$ER PLUG

CONTROLLER

BAROMETRIC RELIEF DAMPERS

GEAR-DRIVEN DAMPER

OUTDOOR AIR TEMPERATURE SENSOR

ACTUATOR

Fig. 19 — EconoMi$er Component Locations

—16—

OUTDOOR AIR OPENING PANEL

ASSEMBLED EXHAUST HOOD

Fig. 22 — Outdoor Air Hood Assembly

SEAL STRIP

OUTDOOR AIR HOOD SIDES

OUTDOOR AIR HOOD TOP

SCREEN RETAINER

OUTDOOR AIR INLET SCREENS

5. Slide the outdoor air inlet screens into the screen

WIRING HARNESS

OUTDOOR AIR BLOCK-OFF PLATE

track on the hood side panels. While holding the screens in place, fasten the screen retainer to the hood using the screws pro vided. Repeat the process for the barometric exhaust air scree n. Do not attach

completed (Fig. 23) hood assembly to unit at this time.

9. Install the complete hood assembly on the unit and secure using the screws provided.

UNIT FILTER RACK

ECONOMI$ER CLIP HVAC UNIT

Fig. 23 — Completed Hood Assembly

6. Slide the EconoMi$ er assembly into the rooftop u nit. See Fig. 24 and 25.

NOTE: Be sure to engage rear EconoMi$er flange under tabs in return air opening of the unit base. See Fig. 24.

7. Install the outdoor air bl ock-off plate, then se cure the EconoMi$er with the screws provided. See Fig. 25.

8. Remove and store the 12-pin jumper plug from the unit wiring harness l ocated in the upper left corner and insert the EconoMi$er plug into the unit wiring harness. Refer to wiring diagram Fig. 26 and 27. Also refer to Fig. 28 if installing an accessory power exhaust.

UNIT BASE

ECONOMI$ER REAR FLANGE

Fig. 24 — Completed Hood Assembly

Fig. 25 — EconoMi$er Installed

ECONOMI$ER

OAT —

LEGEND

Outdoor-Air Thermostat

Fig. 26 — EconoMi$er Wiring

—17—

TO FUSED

DISCONNECT

ECONOMI$ER CONTROLLER

OAT COM

OAH

-15 V RAT

COM

RAH

+15 V

(+)

COM

DAT

COM

REM POT

COM

LED

COM

BROWN VIOLET

WHITE

RED

BROWN

VIOLET WHITE

RED

TEMP TEMP

COM OUT PWR

TEMP TEMP COM

OUT PWR

V+

SENSOR

OUTDOOR AIR SENSOR

RETURN AIR SENSOR

COM VAC

SUPPLY AIR

TEMPERATURE SENSOR

PINK

VIOLET

TEMP

Fig. 27 — EconoMi$er Sensor Wiring

POWER EXHAUST SYSTEM (HIGH VOLTAGE)

CAPACITOR 2 CAPACITOR 1

FAN 1

FAN 2

RED

(575 VAC)

HT01AH859

SECONDARY

HANDY BOX

230VAC

2 x 4 IN.

GRAY

GREEN GND

BLACK L1 BLUE L2

RED YELH1BLU

(460 VAC)

HT01AH850

SECONDARY

COMPRESSOR 1

CONTACTOR

11 21

CONNECTOR

GND

33 44

230 VAC

1 PHASE

230VAC

4-PIN

PLUG

GREEN

GRAY

BLACK

BLUE

RELAY 2 RELAY 1

FIELD SUPPLIED WIRING

BROWN

GREEN/

YELLOW

BROWN

GREEN/ YELLOW

FAN 1

FAN 2

BLACK

LT. BLUE

BLACK

BLUE

BLACK

LT. BLUE

BLACK

4-PIN CONNECTOR PLUG (HIGH VOLTAGE)

BLUE

3-PIN CONNECTOR PLUG (LOW VOLTAGE)

24 VAC

3-PIN

CONNECTOR

PLUG

ORANGE

YELLOW

BROWN

Fig. 28 — Wiring Diagram for Power Exhaust System

—18—

10. Remove the indoor fan motor access panel. See Fig. 29.

11. Mount the supply air temperature sensor to the lower left portion of the indoor blower h ousing with the two (2) screws provided (see Fig. 30). Connect the violet and pink wires to the corresponding connections on the supply air temperature sensor. Replace the indoor fan motor access panel.

CONTROL BOX ACCESS PANEL

INDOOR FAN MOTOR ACCESS PANEL

Fig. 29 — Typical Access Panel Locations

(Standard Efficiency Unit Shown)

SUPPLY AIR TEMPERATURE SENSOR MOUNTING LOCATION

SUPPLY AIR TEMPERATURE SENSOR

Fig. 30 — Supply Air Sensor Placement

Control Set Up

If a CO2 sensor is not bei ng us ed, pr oc eed to the n ext s ectio n. If a CO2 sensor is being used, perform the following:

1. Determine th e valu e at whi ch you w ant th e min imum position of the da mpers to begin opening to al low a greater amount of outdoor air to enter. The range is 800 to 1,400 ppm.

2. Locate the CO

SP (PPM) potentiometer and adjust

to the desired set point. See Fig. 31.

Mechanical Cooling Lockout Determine the outdoor-air temperature at which you want

the mechanical cooling (compressors) to be disabled. Locate the mechanical cooling lockout (MECH CLG LOCKOUT) potentiometer. To disable this feature, turn the potentiometer counterclockwise (CCW) to the OFF position. Otherwise, set the value between 10 and 60 F. Mechanical cooling will not operate when the ou tdoor-air temperature is belo w this value. See Fig. 31.

Dry Bulb Changeover Set Up Determine the dry bulb changeove r set point from Table 3.

The settings are A, B, C and D . Locate the ECON SP potentiometer and set the dry bulb changeover set point. See Fig. 31. When the OAT is above this set point, the damper is limited to minimum position setting.

Table 3 — Changeover Set Points

SETTINGS ABCD Dry Bulb (°F) Single Enthalpy* (Btu/lb) Differential Temperature*

(°F, Not Adjustable) Differential Enthalpy*

(Btu/lb, Not Adjustable)

*Field-installed accessory.

73 69 66 63 27 25 24 22

2222

1111

If a potentiometer fails, its setting will default to the values in Table 4.

Table 4 — Default Potentiometer Settings

POTENTIOMETER DEFAULT SETTING

SP (PPM)

MECH CLG LOCKOUT ECON SP MIN POS (%)

1,000

47°

Ventilation Air (Minimum Position Set Up) If ventilation air is not required, proceed to Step 5. If ventila-

tion air is required, perform the followi ng:

1. The indoor fan must be on to set the ventilation air. Either put the thermostat in the Continuous Fan mode or jumper the R an d G term inals a t the r ooftop unit connection board.

2. Locate the minimum position (MIN POS) potentiometer. Turn the potentiometer full CCW to fully close the outdoor air dampers. Turn the potentiometer gradually clockwise (CW) to the desired position. See Fig. 31.

3. Replace the filter access panel. See Fig. 20. Ensure the filter access pane l slides along the tracks and is securely engaged.

4. Calculate the minimum airflow across the EconoMi$er.

a. Calculate % of outside air using the following

formula.

% Outdoor air through EconoMi$er % Outdoor air =

Mixture Temp – Return Air Temp Outdoor Temp – Return Air Temp

b. Divide total CFM by percentage outdoor air, this

gives outdoor air volume in CFM.

5. Turn on base unit power.

NOTE: The EconoMi$er begins operation three minutes after power up.

WARNING: Personal Injury Hazard. Avoid pos- sible injury by keeping fingers away from damper blades.

6. See Fig. 3 2 for ba rometri c relie f damper charac teris tics .

Fig. 31 — EconoMi$er Control Adjustment

Potentiometers (Factory Settings)

—19—

0.5

0.4

0.3

0.2

0.1

STATIC PRESSURE (IN. WG)

200

600 800 1000

400

FLOW (CUBIC FEET/MINUTE)

1200

1400 1600

Fig. 32 — Barometric Relief Capacity

VII. STEP 7 — ADJUST INDOOR-FAN SPEED

Adjust indoor-fan rpm to meet jobsite conditions. See Table 5 for fan rpm at motor pulley settings. See Table 6 for motor performance data. See Table 7 for static pressure drops. Refer to Tables 8-29 to determine fan speed settings.

Fo r unit s with e lect ric hea ting, required minimum cf m is 900 for 548F036; 1200 for 548F048; 1500 for 5548F060 and 1800 for 548F072.

A. Direct Drive Motors

The indoor-fan motor factory speed setting is shown on label diagram affixed to base unit. If other than factory setting is desired, refer to labe l located on motor for mo tor reconnection. Insert wire into the speed tap co rresponding to des ired speed.

B. Belt-Drive Motors

Fan motor pulleys are factory-set for speed shown in Table 1. See Fig. 33.

To change fan rpm:

1. Shut off unit power supply. Install lockout tag.

2. Loosen belt by loosening fan motor mounting nuts.

3. Loosen movable pulley flange setscrew (see Fig. 34).

4. Screw movable flange toward fixed flange to increase fan rpm and away from fixed flange to decrease fan rpm. Increasing fan rpm increases lo ad on motor. Do not exceed maximum speed specified in Table 1.

5. Set movable flange at nearest flat edge of pulley hub and tighte n setscrew. (See Table 1 for speed change for each full turn of pulley flange.)

To align fan and motor pulleys:

1. Loosen fan pulley setscrews.

2. Slide fan pulley along fan shaft.

3. Make angular alignment by loosening motor from mounting.

To adjust belt tension:

1. Loosen fan motor mounting nuts.

2. Slide motor mounting plate away from fan scroll for proper belt tension (

/2-in. deflection with 5 to 10 lbs

of force).

3. Tighten nuts.

4. Re-check pulley alignment.

MOTOR MOUNTING NUTS AND BOLTS

Fig. 33 — Belt-Drive Motor Mounting

Fig. 34 — Indoor-Fan Pulley Adjustment

—20—

Table 5 — Fan RPM at Motor Pulley Settings*

UNIT 548F

036† 036** 048† 048** 060† 060** 072†† 072**

1000 976 952 928 904 880 856 832 808 784 760 —— 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 1185 1150 1115 1080 1045 1010 975 940 905 870 835 —— 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 1300 1260 1220 1180 1140 1100 1060 1020 980 940 900 —— 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 —— 1460 1420 1380 1345 1305 1265 1225 1185 1150 1110 1070 —— 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 ——

MOTOR PULLEY TURNS OPEN

*Approximate fan rpm shown.

†Indicates alternate motor and drive package.

**Indicates high-static motor and drive package.

††Indicates standard motor and drive package.

Table 6 — Indoor-Fan Motor Performance

UNIT

548F

036

048

060

072

Bhp —

Brake Horsepower

*Extensive motor and electrical testing on these units ensures that the full horsepower range of the motors

can be utilized with confidence. Using your fan motors up to the horsepower ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

†Single-phase/three-phase.

LEGEND

INDOOR-FAN

MOTOR

Standard

Alternate

High Static

Standard

Alternate

High Static

Standard

Alternate

High Static

Standard

High Static

UNIT

VOLTAGE

208/230

460 1.3 575 1.3

208/230

460 2.1 575 2.1

208/230

460 3.0 575 3.0

208/230

460 1.8 575 1.8

208/230

460 2.1 575 2.1

208/230

460 3.0 575 3.0

208/230

460 3.2 575 3.2

208/230

460 3.0 575 3.0

208/230

460 3.9 575 3.9

208/230

460 3.0 575 3.0

208/230

460 3.9 575 3.9

MAXIMUM ACCEPTABLE

CONTINUOUS BHP*

0.34 440

1.00 1000

2.40 2120

0.75 850

1.00 1000

2.40 2120

1.20 1340

1.30/2.40† 2120

2.90 2562

2.40 2120

2.90 2562

Tabl e 7 — Accessory/FIOP Static Pressure* (in. wg)

MAXIMUM ACCEPTABLE

OPERATING WATTS

MAXIMUM

AMP DRAW

2.8

4.9

6.0

3.5

4.9

6.0

5.9

10.1/6.7†

8.6

6.7

8.6

COMPONENT

1 Heater Module 2 Heater Modules Durablade Economizer EconoMi$er

900 1200 1400 1600 1800 2000 2200 2400 2600 3000

0.05 0.07 0.09 0.09 0.10 0.11 0.11 0.12 0.13 0.15

0.15 0.16 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.19

0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

0.05 0.09 0.13 0.17 0.22 0.27 0.32 0.39 0.45 0.53

LEGEND

FIOP —

Factory-Installed Option

*The static pressure must be added to external static pressure. The sum and the indoor

entering-air cfm should then be used in conjunction with the Fan Performance tables to determine blower rpm and watts.

—21—

CFM

Table 8 — Fan Performance, 548F036 Standard Motor — Vertical Discharge Units

548F036 (3 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

Bhp — ESP — FIOP — Watts —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts

0.67 0.21 253 0.68 0.23 277 0.69 0.26 307 0.69 0.31 363

0.60 0.23 270 0.61 0.25 292 0.61 0.27 321 0.63 0.32 374

0.55 0.24 287 0.56 0.26 307 0.57 0.28 335 0.58 0.33 385

0.51 0.26 304 0.51 0.27 323 0.52 0.29 349 0.53 0.34 397

0.45 0.27 321 0.46 0.29 338 0.46 0.31 364 0.47 0.34 408

0.38 0.29 338 0.41 0.30 354 0.43 0.32 378 ———

0.34 0.30 355 0.36 0.31 369 0.38 0.33 392 — ——

LEGEND

Brake Horsepower Input to Fan External Static Pressure (in. wg) Factory-Installed Option Input Watts to Motor

208 v 230, 460, 575 v 208 v 230, 460, 575 v

Low Speed High Speed

Table 9 — Fan Performance, 548F036 Alternate Motor — Vertical Discharge Units

548F036 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

900 581 0.12 119 673 0.18 179 736 0.22 219 1000 644 0.19 189 709 0.22 219 1100 687 0.22 219 746 0.26 259 1200 733 0.26 259 1300 754 0.29 288 1400 1500

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

0.1 0.2 0.3 0.4 0.5 0.6

785 0.32 318 843 0.35 348 903 0.41 408 960 0.47 467 994 0.50 497

810 0.35 348 868 0.45 448 937 0.51 507 984 0.57 567 841 0.42 418 911 0.53 527 985 0.61 607

826 0.38 378 891 0.43 428 942 0.48 477 991 0.53 527

External Static Pressure (in. wg)

782 0.28 279 835 0.30 298 900 0.35 348 937 0.38 378 806 0.30 298 867 0.35 348 929 0.40 398 964 0.40 398

2. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

805 0.25 249 865 0.29 288 911 0.34 338

1029 0.66 656 1073 0.72 716 1109 0.77 766

1032 0.62 617 1067 0.67 666

1047 0.60 597

548F036 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

900 1000 1100 1013 0.49 487 1068 0.55 547 1090 0.58 577 1109 0.61 607 1127 0.64 637 1145 0.67 666 1200 1045 0.56 557 1090 0.64 637 1109 0.64 647 1156 0.68 676 1203 0.71 706 1250 0.74 736 1300 1075 0.64 637 1122 0.70 696 1152 0.72 716 1190 0.76 756 1228 0.80 796 1266 0.84 836 1400 1110 0.73 726 1160 0.84 766 1181 0.81 806 1237 0.85 845 1293 0.89 885 1349 0.93 925 1500 1150 0.82 816 1190 1.00 855 1225 0.90 895 1271 0.95 945 1317 1.00 995

Bhp — FIOP — Watts —

*Motor drive range: 760 to 1000 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.7 0.8 0.9 1.0 1.1 1.2

957 0.39 388 988 0.43 428 992 0.44 438

LEGEND

1039 0.49 487 1061 0.51 507 1086 0.55 547 1111 0.59 587 1136 0.63 627

External Static Pressure (in. wg)

1039 0.45 448 1061 0.47 487 1083 0.53 527 1105 0.57 567

1363 1.05 1044

3. Maximum usable watts input is 1000 and maximum continuous bhp is 1.00. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

—22—

Table 10 — Fan Performance, 548F036 High-Static Motor — Vertical Discharge Units

548F036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

900 673 0.18 179 805 0.25 249 911 0.34 338 988 0.43 428 1061 0.47 487 1000 709 0.22 219 835 0.30 298 937 0.38 378 1039 0.49 487 1100 746 0.26 259 867 0.35 348 964 0.40 398 1068 0.55 547 1200 785 0.32 318 903 0.41 408 994 0.50 497 1300 826 0.38 378 942 0.48 477 1047 0.60 597 1400 868 0.45 448 984 0.57 567 1067 0.67 666 1500 911 0.53 527 1029 0.66 656

548F036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

Bhp — FIOP — Watts —

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1105 0.57 567 1140 0.63 622 1170 0.68 674 1198 0.73 723 1224 0.77 771 1136 0.63 627 1172 0.69 688 1203 0.75 745 1232 0.80 799 1258 0.86 852 1145 0.67 666 1181 0.73 731 1213 0.80 792 1242 0.85 850 1268 0.91 906 1210 0.74 736 1248 0.81 808 1282 0.88 875 1312 0.94 939 1340 1.01 1000 1266 0.84 836 1306 0.92 917 1341 1.00 993 1373 1.07 1066 1402 1.14 1136 1349 0.93 925 1391 1.02 1015 1429 1.11 1100 1383 1.05 1044 1426 1.15 1146

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

External Static Pressure (in. wg)

1086 0.55 547

1090 0.64 637 1156 0.68 676 1122 0.70 696 1190 0.76 756

1109 0.77 766 1190 1.00 855 1271 0.95 945

External Static Pressure (in. wg)

1465 1.25 1242 1500 1.34 1332 1532 1.43 1419

3. Maximum continuous bhp is 2.4, and the maximum continuous watts are 2120. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Indoor-Fan Motor Performance, Table 6 for additional information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

5. Interpolation is permissible. Do not extrapolate.

1160 0.84 766 1237 0.85 845

1463 1.19 1180 1494 1.26 1257

1109 0.61 607

Tabl e 11 — Fan Performance, 548F048 Standard Motor — Vertical Discharge Units

548F048 (4 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

Bhp — ESP — FIOP — Watts —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts

0.93 0.41 458 0.94 0.45 506 0.94 0.51 572 0.99 0.56 632

0.86 0.42 471 0.87 0.46 521 0.87 0.52 589 0.92 0.58 651

0.78 0.45 503 0.79 0.49 556 0.79 0.54 616 0.87 0.60 681

0.70 0.47 536 0.73 0.52 593 0.73 0.56 631 0.80 0.62 698

0.61 0.49 557 0.64 0.54 616 0.66 0.58 654 0.76 0.64 723

0.51 0.52 584 0.54 0.57 646 0.58 0.60 678 0.68 0.66 750

0.40 0.54 610 0.44 0.60 674 0.51 0.62 698 0.63 0.68 772

0.29 0.56 629 0.37 0.62 696 0.46 0.64 720 0.56 0.70 796

0.25 0.58 651 0.30 0.64 720 0.39 0.66 744 0.50 0.73 823

LEGEND

Brake Horsepower Input to Fan External Static Pressure (in. wg) Factory-Installed Option Input Watts to Motor

208 v 230, 460, 575 v 208 v 230, 460, 575 v

Low Speed High Speed

3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

—23—

Tabl e 12 — Fan Performance, 548F048 Alternate Motor — Vertical Discharge Units

548F048 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1200 542 0.16 168 616 0.21 221 678 0.27 278 739 0.32 336 1300 576 0.20 210 644 0.25 263 704 0.31 326 764 0.37 389 1400 610 0.24 252 673 0.30 315 732 0.36 378 791 0.42 441 1500 646 0.28 294 704 0.35 368 761 0.42 436 818 0.48 504 1600 681 0.33 347 735 0.40 420 790 0.47 494 1700 718 0.39 410 768 0.46 483 1800 754 0.45 473 801 0.53 557 1900 791 0.52 546 2000 828 0.60 630

548F048 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

836 0.54 562 873 0.61 641 965 0.76 777 1005 0.84 853 1045 0.91 930

836 0.60 630 832 0.69 720 828 0.77 809 1019 0.93 950 870 0.68 714 864 0.77 809 858 0.86 904

1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1008 0.67 704 1052 0.73 762 1096 0.78 820 1134 0.89 835 1029 0.75 788 1065 0.81 846 1101 0.86 904 1052 0.83 826 1087 0.90 890 1121 0.96 918 1076 0.91 905 1111 0.99 980 1100 1.00 995 1124 1.09 1084 1158 1.17 1164 1192 1.25 1196 1255 1.42 1358 1314 1.58 1511 1370 1.77 1738 1147 1.18 1174 1182 1.27 1263 1217 1.36 1301 1279 1.54 1473 1381 1.71 1635 1393 1.89 1907 1169 1.27 1263 1205 1.37 1363 1240 1.47 1406 1303 1.66 1588 1408 1.85 1769 1417 2.03 2068 1194 1.38 1373 1228 1.48 1472 1262 1.58 1511 1327 1.78 1702 1436 1.98 1894 1440 2.18 2229

1134 1.08 1069 1168 1.15 1100 1232 1.31 1253 1291 1.46 1396 1350 1.60 1558

851 0.61 641 900 0.69 725 992 0.84 858 1032 0.92 940

External Static Pressure (in. wg)

1145 1.06 1014 1208 1.20 1138 1274 1.33 1272 1337 1.47 1350

LEGEND

Bhp — FIOP — Watts —

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

*Motor drive range: 835 to 1185 rpm. All other rpms require fieldsupplied drive.

NOTES:

Boldface

indicates field-supplied motor drive is required.

2. indicates field-supplied motor and drive are required.

External Static Pressure (in. wg)

845 0.54 567 920 0.68 695 931 0.76 772 1023 0.83 848

1174 1.01 1040 1229 1.15 1100 1277 1.27 1029 1183 1.09 1042 1255 1.22 1167 1305 1.38 1190

3. Maximum usable watts input is 1000 and maximum continuous

4. Values include losses for filters, unit casing, and wet coils. See

5. Use of a field-supplied motor may affect wire sizing. Contact your

6. Interpolation is permissible. Do not extrapolate.

842 0.44 462 886 0.50 525 929 0.56 588 867 0.50 525 910 0.56 588 952 0.62 651 889 0.55 578 933 0.62 651 976 0.69 725 912 0.61 641 957 0.69 720 1001 0.76 777

1046 1.03 1053 1085 1.12 1139 1124 1.21 1237

1203 1.00 885

1058 1.02 1037 1097 1.10 1124

—— —

1071 1.00 1022

bhp is 1.00. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

Table 7 for accessory/FIOP static pressure information.

Bryant representative for details.

—24—

Table 13 — Fan Performance, 548F048 High-Static Motor — Vertical Discharge Units

548F048 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1200 665 0.25 263 779 0.36 378 872 0.48 504 957 0.60 630 1028 0.69 725 1300 699 0.30 315 809 0.42 441 902 0.55 578 984 0.67 704 1058 0.80 841 1400 735 0.36 378 840 0.48 504 933 0.62 651 1011 0.75 788 1500 770 0.42 441 873 0.55 578 963 0.69 725 1041 0.84 858 1600 835 0.49 515 907 0.63 662 993 0.77 787 1072 0.93 950 1700 873 0.57 599 941 0.72 757 1024 0.87 889 1800 881 0.66 693 976 0.81 851 1057 0.97 991 1900 919 0.75 788 1011 0.92 967 2000 958 0.86 904 1046 1.03 1082

548F048 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

Bhp — FIOP — Watts —

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1083 0.74 778 1134 0.80 935 1185 0.88 965 1331 0.99 1000 1374 1.09 1083 1121 0.89 935 1171 0.94 988 1219 1.00 999 1268 1.10 1029 1309 1.21 1203 1153 1.00 976 1210 1.12 1071 1257 1.17 1105 1307 1.25 1190 1349 1.37 1367 1180 1.13 1081 1241 1.27 1215 1295 1.37 1294 1339 1.43 1350 1382 1.57 1564 1207 1.25 1196 1269 1.40 1339 1326 1.54 1454 1376 1.65 1558 1420 1.81 1805 1235 1.37 1310 1296 1.53 1463 1354 1.70 1605 1407 1.84 1738 1452 2.02 2013 1263 1.49 1425 1323 1.57 1597 1381 1.85 1757 1436 2.02 1907 1294 1.63 1559 1351 1.81 1731 1408 2.00 1889 1325 1.78 1702 1362 1.97 1884 1436 2.16 2040

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

LEGEND

External Static Pressure (in. wg)

1086 0.89 885 1113 0.99 985

1103 1.04 1063 1171 1.20 1194

1091 1.08 1104 1162 1.25 1277 1232 1.45 1442 1125 1.21 1237 1195 1.38 1410 1262 1.58 1572

External Static Pressure (in. wg)

3. Maximum continuous bhp is 2.4 and the maximum continuous watts are 2120. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Indoor-Fan Motor Performance, Table 6 for additional information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

5. Interpolation is permissible. Do not extrapolate.

1132 1.14 1165 1202 1.32 1313

1463 2.19 2068 1489 2.36 2229

1141 1.09 1084

1482 2.22 2210

—— — —— —

Tabl e 14 — Fan Performance, 548F060 Standard Motor — Vertical Discharge Units

548F060 (5 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

Bhp — ESP — FIOP — Watts —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts

0.88 0.67 750 1.20 0.71 791 1.19 0.70 782 1.36 0.76 845 1.38 0.79 875 1.44 0.85 949

0.68 0.70 780 1.04 0.74 824 1.04 0.74 821 1.22 0.79 883 1.25 0.82 913 1.33 0.89 988

0.51 0.73 810 0.89 0.77 857 0.89 0.77 861 1.09 0.83 921 1.13 0.85 950 1.22 0.92 1027

0.35 0.75 839 0.73 0.80 891 0.74 0.81 900 0.96 0.86 959 1.00 0.89 988 1.11 0.96 1066

0.26 0.78 873 0.58 0.83 924 0.59 0.84 940 0.86 0.90 997 0.88 0.92 1025 1.00 0.99 1105

0.18 0.81 905 0.42 0.86 957 0.44 0.88 979 0.73 0.93 1035 0.78 0.95 1063 0.92 1.03 1144

0.08 0.84 940 0.27 0.89 990 0.29 0.91 1018 0.59 0.96 1073 0.63 0.99 1101 0.81 1.06 1183

———0.19 0.92 1023 0.19 0.93 1035 0.46 1.00 1111 0.49 1.02 1138 0.69 1.10 1222 ———0.11 0.95 1056 0.11 0.97 1076 0.34 1.03 1149 0.41 1.06 1176 0.59 1.13 1261 ———0.03 0.98 1096 0.04 1.00 1113 0.19 1.07 1187 0.22 1.09 1213 0.43 1.17 1300 ——————— ——0.09 1.10 1225 0.12 1.12 1251 0.34 1.20 1340

LEGEND

Brake Horsepower Input to Fan External Static Pressure (in. wg) Factory-Installed Option Input Watts to Motor

Low Speed Medium Speed High Speed

208 v 230, 460, 575 v 208 v 230, 460, 575 v 208 v 230, 460, 575 v

3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

—25—

Tabl e 15 — Fan Performance, 548F060 Alternate Motor — Vertical Discharge Units

548F060 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 730 0.34 347 789 0.40 409 896 0.53 542 1600 770 0.40 409 826 0.46 470 1700 811 0.47 480 865 0.54 552 1800 852 0.55 562 1900 894 0.54 552 2000 2100 2200 2300 2400 2500

548F060 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1600 1700 1800 1900 2000 2100 1327 1.66 1696 1393 1.80 1911 1452 2.08 2126 1510 2.31 2361 2200 1359 1.80 1850 1423 2.02 2064 1483 2.24 2289 2300 1392 1.97 2013 1454 2.18 2228 2400 1426 2.15 2197 1485 2.36 2412 2500 1461 2.34 2391

Bhp — FIOP — Watts —

*Motor drive range: 900 to 1300 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

936 0.74 756 984 0.82 838 1072 0.98 1001 1154 1.16 1185 1226 1.33 1359

978 0.85 869 1024 0.93 950 1108 1.10 1124 1192 1.29 1318 1259 1.47 1502 1021 0.97 991 1064 1.05 1073 1145 1.22 1247 1225 1.43 1461 1294 1.62 1656 1064 1.10 1124 1104 1.18 1206 1183 1.36 1390 1260 1.57 1604 1107 1.24 1267 1145 1.32 1349 1222 1.45 1482 1296 1.73 1768 1150 1.39 1420 1186 1.48 1512 1262 1.68 1717

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1153 1.00 1022 1221 1.17 1196 1256 1.30 1328 1280 1.32 1349 1178 1.09 1114 1252 1.27 1298 1205 1.18 1206 1278 1.37 1400 1235 1.29 1318 1266 1.40 1431 1297 1.53 1564

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.1 0.2 0.4 0.6 0.8

905 0.62 634 1002 0.78 797 1084 0.93 950 1163 1.10 1124 945 0.72 736 1037 0.88 899 1119 1.04 1063 1194 1.21 1237

1.0 1.2 1.4 1.6 1.8

1303 1.48 1512 1371 1.69 1727 1433 1.90 1942 1480 2.09 2136 1330 1.59 1625 1396 1.80 1850 1460 2.03 2074 1517 2.25 2299 1362 1.73 1768 1422 1.94 1983 1485 2.16 2207 1544 2.40 2453

1518 2.55 2606 1575 2.78 2841 1631 3.03 3096 1684 3.28 3352

External Static Pressure (in. wg)

931 0.61 623 1020 0.75 766 1101 0.91 930 966 0.69 705 1051 0.84 858 1133 1.01 1032

External Static Pressure (in. wg)

1311 1.45 1482 1340 1.58 1615 1380 1.61 1645 1345 1.57 1604 1397 1.76 1799 1424 1.89 1931

1515 2.41 2463 1569 2.64 2698 1622 2.88 2943 1544 2.59 2647 1601 2.84 2902 1652 3.07 3137

3. Maximum usable watts input is 2120 and maximum continuous bhp is 1.30 for single-phase units and 2.40 for 3-phase units. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

990 0.67 685 1072 0.83 848

1331 1.80 1921 1400 2.12 2166

1538 2.46 2514 1595 2.71 2769

1330 1.78 1819 1365 1.94 1983

1320 1.22 1400

1569 2.55 2606

—26—

Table 16 — Fan Performance, 548F060 High-Static Motor — Vertical Discharge Units

548F060 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 808 0.42 429 914 0.56 572 1001 0.69 705 1084 0.85 869 1168 1.01 1032 1600 846 0.49 501 950 0.64 645 1034 0.78 797 1111 0.94 961 1194 1.11 1134 1700 884 0.57 582 983 0.72 736 1068 0.88 899 1145 1.03 1053 1218 1.21 1237 1800 924 0.66 674 1018 0.82 838 1105 0.98 1001 1179 1.13 1155 1246 1.32 1349 1900 965 0.76 777 1057 0.92 940 1143 1.10 1124 1212 1.26 1288 1280 1.43 1461 2000 1008 0.87 889 1096 1.04 1063 1177 1.22 1247 1247 1.40 1431 2100 1051 0.99 1012 1136 1.17 1196 1210 1.35 1380 1284 1.54 1574 2200 1095 1.12 1145 1173 1.30 1328 1245 1.49 1523 2300 1140 1.26 1288 1210 1.47 1502 1284 1.65 1686 2400 1185 1.41 1441 1249 1.61 1645 2500 1231 1.57 1604 1289 1.78 1819

548F060 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1199 1.19 1216 1126 1.46 1492 1250 1.69 1757 1600 1263 1.28 1308 1275 1.49 1523 1299 1.78 1800 1700 1295 1.39 1420 1800 1900 2000 2100 2200 2300 2400 2500

Bhp — FIOP — Watts —

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1319 1.52 1553 1389 1.71 1747 1435 1.91 1952 1494 2.15 2197 1548 2.40 2446 1343 1.64 1676 1415 1.80 1891 1478 2.05 2095 1538 2.31 2358 1594 2.57 2625 1374 1.77 1809 1438 1.99 2034 1505 2.21 2258 1566 2.49 2542 1624 2.77 2830 1409 1.91 1952 1465 2.14 2167 1533 2.45 2501 1596 2.77 2821 1442 2.08 2126 1498 2.30 2350 1568 2.64 2688 1475 2.26 2310 1554 2.64 2698 1565 2.47 2524 1649 2.89 2948 1596 2.95 3010 1682 3.45 3522 1760 3.96 4036 ——————

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

1351 1.58 1615 1352 1.80 1850 1407 2.03 2070 1459 2.26 2305

LEGEND

External Static Pressure (in. wg)

1300 1.57 1604

1322 1.70 1737 1380 1.89 1931

1323 1.80 1860 1389 2.03 2074 1456 2.26 2310 1363 2.00 2044 1424 2.22 2269 1500 2.45 2504

External Static Pressure (in. wg)

1627 3.03 3091 1693 3.42 3486 1755 3.81 3881 1726 3.31 3379 ——————

3. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 2.9 and the maximum continuous watts are 2562. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Performance, Table 6 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

1356 1.80 1901 1418 2.07 2115

1301 1.91 1944 1349 2.12 2164 1352 2.01 2047 1401 2.23 2280

1632 2.97 3031 1691 3.31 3375

1347 1.72 1758

1654 3.08 3141

—27—

Tabl e 17 — Fan Performance, 548F072 Standard Motor — Vertical Discharge Units

548F072 (6 TONS)* — STANDARD MOTOR (BELT DRIVE)

Airflow

(Cfm)

1800 852 0.55 562 905 0.62 615 1002 0.78 739 1900 894 0.64 630 945 0.72 692 1037 0.88 818 2000 936 0.74 708 984 0.82 771 2100 978 0.85 795 1024 0.93 859 2200 1021 0.97 891 1064 1.05 956 2300 1064 1.10 998 2400 2500 2600 2700 2800 2900 3000

548F072 (6 TONS)* — STANDARD MOTOR (BELT DRIVE) (cont)

Airflow

(Cfm)

1800 1900 2000 2100 2200 2300 2400 2500 1461 2.34 2067 2600 2700 2800 2900 3000

Bhp — FIOP — Watts —

*Motor drive range: 1070 to 1460 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1107 1.24 1114 1145 1.32 1182 1222 1.52 1353 1296 1.73 1534 1365 1.94 1718 1150 1.39 1241 1186 1.48 1318 1262 1.68 1491 1331 1.89 1674 1400 2.12 1875 1193 1.56 1387 1228 1.65 1465 1301 1.86 1648 1367 2.07 1831 1435 2.31 2041 1237 1.74 1543 1269 1.83 1621 1341 2.05 1814 1404 2.26 1997 1280 1.94 1718 1311 2.03 1796 1381 2.25 1989 1324 2.15 1901 1354 2.24 1980 1368 2.37 2093

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1235 1.29 1156 1303 1.48 1318 1371 1.69 1499 1433 1.90 1638 1266 1.40 1250 1330 1.59 1413 1396 1.81 1604 1297 1.53 1361 1362 1.73 1534 1422 1.94 1718 1327 1.66 1473 1393 1.87 1656 1452 2.08 1840 1359 1.81 1604 1423 2.02 1779 1392 1.97 1744 1454 2.18 1927 1426 2.15 1901

1497 2.54 2240 1552 2.76 2428 —————— 1532 2.75 2420 —————————

———————————— ———————————— ————————————

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.1 0.2 0.4 0.6 0.8

1104 1.18 1064 1183 1.36 1216 1260 1.57 1396 1330 1.78 1578

1396 2.46 2171 1460 2.69 2369 1521 2.93 2571 ———

External Static Pressure (in. wg)

1.0 1.2 1.4 1.6

1485 2.36 2084

1518 2.55 2249 1575 2.78 2445 ———

LEGEND

External Static Pressure (in. wg)

1072 0.98 899 1154 1.16 1047 1226 1.33 1190 1108 1.10 998 1190 1.29 1156 1259 1.47 1310 1145 1.22 1097 1225 1.43 1275 1294 1.62 1439

1420 2.47 2180 1481 2.69 2369 1542 2.94 2579

1483 2.24 1980

1515 2.41 2128 1569 2.64 2326 1544 2.59 2283 1601 2.84 2459

3. Maximum usable watts input is 2120 and maximum continuous

4. Values include losses for filters, unit casing, and wet coils. See

5. Use of a field-supplied motor may affect wire sizing. Contact your

6. Interpolation is permissible. Do not extrapolate.

1084 0.93 859 1163 1.10 998 1119 1.04 948 1194 1.21 1089

1442 2.47 2180 1506 2.72 2394

1460 2.03 1796 1485 2.16 1910 1510 2.31 2041

1538 2.46 2171

bhp is 2.40. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

Table 7 for accessory/FIOP static pressure information.

Bryant representative for details.

1471 2.51 2214

—28—

Table 18 — Fan Performance, 548F072 High-Static Motor — Vertical Discharge Units

548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1800 978 0.66 700 1063 0.82 771 1147 0.97 891 1248 1.20 1081 1900 1023 0.78 779 1097 0.91 843 1175 1.11 1006 1266 1.29 1158 2000 1068 0.90 867 1132 1.01 924 1218 1.23 1106 2100 1115 1.00 998 1180 1.17 1056 1261 1.35 1207 2200 1159 1.15 1081 1214 1.28 1148 2300 1202 1.29 1140 1248 1.38 1233 2400 1237 1.41 1224 1292 1.55 1378 2500 1272 1.53 1335 2600 2700 2800 2900 3000

548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000

Bhp — FIOP — Watts —

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

3. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1320 1.68 1482 1368 1.81 1604 1458 2.06 1823 1562 2.42 2136 1620 2.59 2283 1361 1.82 1595 1400 1.91 1691 1490 2.19 1936 1602 2.64 2326 1666 2.85 2504 1402 1.95 1639 1439 2.08 1840 1543 2.43 2145 1642 2.86 2512 1446 2.16 1814 1477 2.16 1989 1585 2.65 2335 1489 2.36 2032 1529 2.52 2223 1598 2.73 2444

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1395 1.46 1301 1475 1.56 1387 1542 1.71 1517 1607 1.94 1761 1667 2.16 1967 1430 1.58 1404 1504 1.69 1499 1556 1.82 1613 1621 2.06 1874 1682 2.30 2093 1459 1.67 1482 1532 1.82 1613 1588 1.97 1744 1655 2.23 2029 1489 1.80 1595 1567 1.99 1761 1626 2.16 1910 1528 1.95 1726 1603 2.17 1919 1666 2.37 2093 1561 2.13 1884 1637 2.35 2076 1584 2.28 2015 1671 2.55 2249 1633 2.53 2232 1675 2.77 2436 1775 3.45 3141 ————————————

——————————————— ——————————————— ———————————————

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1335 1.71 1517 1427 1.94 1718 1518 2.16 1910 1575 2.35 2076

0.2 0.4 0.6 0.8 1.0

1698 2.72 2405

1768 3.26 2964 —————————

LEGEND

External Static Pressure (in. wg)

1303 1.41 1258 1397 1.52 1353

1310 1.52 1353 1375 1.63 1447 1459 1.80 1595 1358 1.69 1499 1410 1.72 1526 1488 1.93 1709 1392 1.81 1604 1460 1.90 1683 1532 2.14 1892

External Static Pressure (in. wg)

1710 2.54 2272 1782 2.87 2616 1756 2.70 2467

1779 3.13 2848 ——————

4. Maximum continuous bhp is 2.9 and the maximum continuous watts are 2562. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Indoor-Fan Motor Performance, Table 6 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

1340 1.53 1361 1428 1.66 1473

1753 3.58 3262 ——— 1767 3.69 3360 ———

1694 2.44 2224 1758 2.73 2485 1736 2.68 2441

——————

1322 1.33 1190 1356 1.47 1310

1775 3.62 3290

1717 2.49 2266

——— ———

—29—

Table 19 — Fan Performance, 548F036 Standard Motor — Horizontal Discharge Units

548F036 (3 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

Bhp — ESP — FIOP — Watts —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts

0.72 0.21 253 0.75 0.23 277 0.73 0.26 307 0.76 0.31 363

0.67 0.23 270 0.69 0.25 292 0.70 0.27 321 0.71 0.32 374

0.61 0.24 287 0.63 0.26 307 0.64 0.28 335 0.65 0.33 385

0.57 0.26 304 0.58 0.27 323 0.56 0.29 349 0.59 0.34 397

0.51 0.27 321 0.53 0.29 338 0.53 0.31 364 0.54 0.34 408

0.44 0.29 338 0.46 0.30 354 0.47 0.32 378 ———

0.39 0.30 355 0.41 0.31 369 0.43 0.33 392 ———

LEGEND

Brake Horsepower Input to Fan External Static Pressure (in. wg) Factory-Installed Option Input Watts to Motor

208 v 230, 460, 575 v 208 v 230, 460, 575 v

Low Speed High Speed

3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

Tabl e 20 — Fan Performance, 548F036 Alternate Motor — Horizontal Discharge Units

548F036 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1000 570 0.09 109 627 0.13 149 738 0.19 189 1100 614 0.13 149 670 0.16 189 758 0.23 229 1200 658 0.16 189 710 0.23 229 1300 703 0.20 239 752 0.27 269 1400 725 0.29 288 1500 755 0.33 328

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

900 526 0.06 70 584 0.08 99 656 0.12 139 734 0.22 219

0.10.20.30.40.50.6

776 0.31 308 845 0.38 378 891 0.42 418 937 0.47 467 983 0.51 507 816 0.38 378 870 0.43 428 924 0.48 477 969 0.53 527

External Static Pressure (in. wg)

800 0.26 259 848 0.29 288 895 0.31 308

780 0.28 279 840 0.32 318 889 0.36 358 938 0.40 398 808 0.32 318 868 0.37 368 916 0.41 408 963 0.45 448

812 0.29 288 863 0.32 308 914 0.35 348

818 0.25 269 875 0.27 289

1014 0.58 577

548F036 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1000 1100 1200 1300 1012 0.51 507 1061 0.56 557 1090 0.61 607 1172 0.65 647 1239 0.72 716 1306 0.79 786 1400 1027 0.56 557 1071 0.60 597 1108 0.67 666 1208 0.70 706 1278 0.79 786 1347 0.87 865 1500 1056 0.63 627 1097 0.68 676 1117 0.70 696 1245 0.74 776 1315 0.87 865 1385 0.96 955

Bhp — FIOP — Watts —

*Motor drive range: 760 to 1000 rpm. All other rpms require field-

supplied drive.

NOTES:

2. Maximum usable watts input is 1000 and maximum continuous bhp

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

900

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

is 1.00. Extensive motor and electrical testing on these units

0.7 0.8 0.9 1.0 1.1 1.2

924 0.32 308 953 0.35 348 989 0.38 388 936 0.35 348 977 0.39 388 960 0.39 388 960 0.45 388

LEGEND

indicates field-supplied drive is required.

1005 0.43 428 1052 0.49 487 1100 0.52 527 1163 0.59 587 1225 0.65 647 1038 0.50 497 1076 0.53 527 1136 0.59 577 1201 0.65 647 1266 0.72 716

External Static Pressure (in. wg)

1020 0.44 438 1064 0.48 477 1124 0.54 537 1185 0.60 597

1028 0.42 438 1074 0.49 487 1120 0.54 537

ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Interpolation is permissible. Do not extrapolate.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

—30—

Table 21 — Fan Performance, 548F036 High-Static Motor — Horizontal Discharge Units

548F036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

900 584 0.08 99 734 0.22 219 875 0.27 269 953 0.35 348 1028 0.42 438 1000 627 0.13 149 800 0.26 259 895 0.31 308 977 0.39 388 1064 0.48 477 1100 670 0.16 189 812 0.29 288 914 0.35 348 1005 0.43 428 1200 710 0.23 229 840 0.32 318 938 0.40 398 1038 0.50 497 1300 752 0.27 269 868 0.37 368 963 0.45 448 1061 0.56 557 1400 776 0.31 308 891 0.42 418 983 0.51 507 1071 0.60 597 1500 816 0.38 378 924 0.48 477 1014 0.58 577

548F036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

Bhp — FIOP — Watts —

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1120 0.54 537 1155 0.59 589 1186 0.64 639 1215 0.69 685 1240 0.73 730 1185 0.60 597 1222 0.66 655 1255 0.71 709 1285 0.77 761 1312 0.82 811 1225 0.65 647 1263 0.71 709 1298 0.77 769 1328 0.83 825 1357 0.88 879 1266 0.72 716 1306 0.79 786 1341 0.86 851 1373 0.92 914 1402 0.98 973 1306 0.79 786 1347 0.87 862 1383 0.94 934 1416 1.01 1003 1446 1.07 1068 1347 0.87 865 1389 0.95 950 1427 1.03 1029 1385 0.96 955 1428 1.05 1048

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

External Static Pressure (in. wg)

1100 0.52 527 1136 0.59 577 1172 0.65 647

1097 0.68 676 1245 0.74 776

External Static Pressure (in. wg)

1467 1.14 1135 1502 1.22 1218 1534 1.30 1298

4. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

5. Interpolation is permissible. Do not extrapolate.

1461 1.11 1104 1492 1.18 1176

1208 0.70 706

Table 22 — Fan Performance, 548F048 Standard Motor — Horizontal Discharge Units

548F048 (4 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

Bhp — ESP — FIOP — Watts —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts

0.93 0.41 458 0.97 0.45 506 1.04 0.51 572 1.09 0.56 632

0.86 0.42 471 0.90 0.46 521 0.96 0.52 589 1.02 0.58 651

0.78 0.45 503 0.84 0.49 556 0.90 0.54 616 0.96 0.60 681

0.73 0.47 536 0.76 0.52 593 0.83 0.56 631 0.89 0.62 698

0.67 0.49 557 0.70 0.54 616 0.75 0.58 654 0.82 0.64 723

0.60 0.52 584 0.63 0.57 646 0.67 0.60 678 0.74 0.66 750

0.51 0.54 610 0.54 0.60 674 0.62 0.62 698 0.69 0.68 772

0.40 0.56 629 0.45 0.62 696 0.54 0.64 720 0.62 0.70 796

0.32 0.58 661 0.33 0.65 731 0.47 0.66 744 0.54 0.73 823

LEGEND

Brake Horsepower Input to Fan External Static Pressure (in. wg) Factory-Installed Option Input Watts to Motor

208 v 230, 460, 575 v 208 v 230, 460, 575 v

Low Speed High Speed

3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

—31—

Tabl e 23 — Fan Performance, 548F048 Alternate Motor — Horizontal Discharge Units

548F048 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1200 514 0.15 158 590 0.20 210 657 0.25 263 723 0.30 315 828 0.42 441 1300 545 0.18 189 615 0.23 242 680 0.29 305 744 0.35 368 1400 577 0.21 221 642 0.27 284 704 0.33 347 766 0.39 410 1500 609 0.26 273 670 0.31 326 729 0.38 394 788 0.44 462 1600 642 0.30 315 699 0.36 378 755 0.43 447 811 0.49 515 1700 675 0.36 378 728 0.42 441 782 0.49 510 1800 709 0.41 431 759 0.48 504 810 0.55 578 1900 743 0.48 504 790 0.55 578 2000 778 0.55 578

548F048 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

Bhp — FIOP — Watts —

*Motor drive range: 835 to 1185 rpm. All other rpms require field-supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

3. Maximum usable watts input is 1000 and maximum continuous bhp is 1.00. Extensive motor and electrical testing on these units ensures that the full

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

836 0.62 651 875 0.70 730 913 0.77 809 1004 0.94 988

1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

999 0.66 674 1018 0.67 685 1036 0.68 695 1073 0.71 756 1109 0.75 794 1138 0.79 851 1025 0.74 756 1058 0.79 807 1090 0.84 858 1121 0.87 832 1159 0.90 918 1042 0.81 828 1080 0.88 899 1118 0.95 971 1060 0.88 899 1098 0.96 981 1080 0.95 971 1101 1.03 1053 1137 1.12 1139 1172 1.20 1226 1241 1.38 1320 1307 1.56 1492 1366 1.73 1655 1122 1.11 1134 1157 1.20 1226 1192 1.29 1318 1258 1.48 1415 1323 1.67 1597 1385 1.86 1779 1143 1.21 1237 1179 1.30 1328 1214 1.39 1420 1279 1.58 1511 1341 1.78 1702 1402 1.98 1894 1165 1.31 1339 1200 1.40 1431 1235 1.49 1523 1300 1.69 1616 1361 1.90 1817 1419 2.10 2008

LEGEND

Brake Horsepower Input to Fan

Factory-Installed Option

Input Watts to Motor

indicates field-supplied drive is required.

1117 1.04 1058 1153 1.12 1140 1224 1.29 1234 1287 1.45 1387 1337 1.56 1492

838 0.62 651 886 0.69 725 980 0.86 904 1023 0.95 993

External Static Pressure (in. wg)

1136 1.04 1063 1205 1.19 1138 1258 1.30 1243 1289 1.34 1282

External Static Pressure (in. wg)

849 0.47 494 895 0.54 562 940 0.60 630 870 0.52 546 915 0.59 620 959 0.66 693 892 0.58 609 936 0.65 683 980 0.72 757

836 0.55 578 935 0.71 746 979 0.79 825 1023 0.86 904 860 0.62 651 957 0.78 820 1001 0.86 904 1044 0.94 988

1175 1.06 1014 1206 1.09 1042 1244 1.12 1138

range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Interpolation is permissible. Do not extrapolate.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

913 0.64 672 957 0.72 751 1001 0.79 830

876 0.49 510 924 0.55 578

1066 1.03 1082

1046 1.03 1082 1088 1.12 1177

1193 0.95 976

Table 24 — Fan Performance, 548F048 High-Static Motor — Horizontal Discharge Units

548F048 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

0.2 0.4 0.6 0.8 1.0

1200 641 0.23 242 761 0.34 357 859 0.46 483 943 0.58 609 1030 0.70 695 1300 673 0.28 294 788 0.39 410 887 0.52 546 968 0.65 683 1044 0.77 736 1400 705 0.33 347 817 0.45 473 914 0.59 620 996 0.72 757 1069 0.86 838 1500 738 0.38 399 847 0.51 536 940 0.65 683 1024 0.81 851 1600 772 0.44 462 877 0.58 609 967 0.73 767 1051 0.89 935 1700 806 0.51 536 908 0.66 693 997 0.81 851 1800 841 0.59 620 939 0.75 788 1026 0.91 956 1900 876 0.68 714 971 0.84 883 1056 1.01 1061 2000 912 0.77 809 1004 0.94 988

548F048 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

Bhp — FIOP — Watts —

*Motor drive range: 1075 to 1455 rpm. All other rpms require field-supplied drive.

NOTES:

Boldface

2. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1106 0.87 889 1134 0.98 998 1189 1.12 1138 1245 1.21 1358 1292 1.35 1345 1128 0.91 930 1183 1.10 1052 1226 1.23 1215 1297 1.35 1406 1346 1.51 1500 1139 1.01 1012 1218 1.14 1090 1286 1.34 1282 1320 1.48 1463 1370 1.65 1645 1162 1.09 1114 1228 1.24 1186 1303 1.40 1339 1343 1.60 1530 1393 1.79 1778 1185 1.20 1226 1250 1.35 1291 1319 1.51 1444 1382 1.68 1607 1434 1.88 1867 1215 1.31 1339 1276 1.48 1415 1334 1.64 1569 1398 1.80 1722 1451 2.01 2001 1243 1.43 1461 1303 1.61 1540 1359 1.78 1702 1418 1.95 1865 1271 1.56 1594 1330 1.74 1664 1386 1.93 1846 1439 2.11 2018 1298 1.69 1727 1358 1.89 1808 1413 2.08 1989

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

1.2 1.4 1.6 1.8 2.0

LEGEND

External Static Pressure (in. wg)

1095 0.95 930

1123 1.05 1073 1077 1.01 1030 1151 1.15 1185 1104 1.07 1124 1178 1.26 1318 1132 1.18 1240 1204 1.37 1502

1087 1.12 1177 1162 1.30 1366 1231 1.48 1604

External Static Pressure (in. wg)

1471 2.18 2167

1466 2.27 2171

3. Maximum continuous bhp is 2.4 and the maximum continuous watts are

2120. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Indoor-Fan Motor Performance, Table 6 for additional information.

4. Interpolation is permissible. Do not extrapolate.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

1493 2.36 2345

———

—32—

Table 25 — Fan Performance, 548F060 Standard Motor — Horizontal Discharge Units

548F060 (5 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

Bhp — ESP — FIOP — Watts —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See

ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts

1.01 0.67 750 1.25 0.71 791 1.26 0.70 782 1.46 0.76 845 1.46 0.79 875 1.52 0.85 949

0.82 0.70 780 1.09 0.74 824 1.11 0.74 821 1.32 0.79 883 1.33 0.82 913 1.41 0.89 988

0.64 0.73 810 0.97 0.77 857 0.99 0.77 861 1.22 0.83 921 1.24 0.85 950 1.33 0.92 1027

0.44 0.75 839 0.81 0.80 891 0.84 0.80 900 1.09 0.86 959 1.11 0.89 988 1.22 0.96 1066

0.32 0.78 869 0.66 0.83 924 0.69 0.83 940 0.96 0.90 997 0.99 0.92 1025 1.11 0.99 1105

0.21 0.81 899 0.47 0.86 957 0.51 0.86 979 0.80 0.93 1035 0.83 0.95 1063 0.97 1.03 1144

0.13 0.83 929 0.32 0.89 990 0.36 0.89 1018 0.64 0.96 1073 0.71 0.99 1101 0.86 1.06 1183

0.05 0.86 959 0.19 0.92 1023 0.21 0.92 1058 0.50 1.00 1111 0.58 1.02 1138 0.75 1.10 1222

—— —0.08 0.95 1057 0.08 0.95 1097 0.34 1.03 1149 0.39 1.06 1176 0.57 1.13 1261 —————————0.24 1.07 1187 0.29 1.09 1213 0.49 1.17 1300 —————————0.15 1.10 1225 0.15 1.12 1251 0.34 1.20 1340

LEGEND

Brake Horsepower Input to Fan External Static Pressure (in. wg) Factory-Installed Option Input Watts to Motor

Table 7 for accessory/FIOP static pressure information.

Low Speed Medium Speed High Speed

208 v 230, 460, 575 v 208 v 230, 460, 575 v 208 v 230, 460, 575 v

3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

Tabl e 26 — Fan Performance, 548F060 Alternate Motor — Horizontal Discharge Units

548F060 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 658 0.27 276 722 0.33 337 840 0.46 470 1600 693 0.32 327 754 0.38 388 867 0.52 531 1700 729 0.38 388 787 0.44 450 895 0.58 593 1800 765 0.45 460 821 0.51 521 1900 802 0.52 531 854 0.58 593 2000 840 0.60 613 2100 878 0.69 705 2200 2300 2400 2500

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1031 1.13 1155 1066 1.20 1226 1145 1.39 1420 1220 1.57 1604 1292 1.77 1809

0.1 0.2 0.4 0.6 0.8

900 0.66 674 984 0.82 838 1073 0.99 1012 1154 1.16 1185

916 0.78 797 958 0.85 869 1046 1.01 1032 1129 1.19 1216 1209 1.39 1420 954 0.89 910 993 0.96 981 1079 1.13 1155 1160 1.31 1339 1237 1.51 1543 993 1.00 1022 1029 1.07 1093 1112 1.25 1277 1190 1.43 1461 1264 1.63 1666

923 0.75 766 1015 0.91 930 1101 1.08 1104 1182 1.27 1298

External Static Pressure (in. wg)

923 0.65 664 1019 0.81 828 1099 0.96 981 953 0.73 746 1046 0.90 920 1126 1.06 1083

937 0.59 603 1027 0.74 756 963 0.65 664 1052 0.81 828 991 0.73 746 1075 0.88 899

548F060 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1600 1700 1800 1900 2000 2100 2200 2300 1309 1.71 1747 1372 1.91 1952 1434 2.11 2156 1496 2.34 2391 2400 1336 1.80 1891 1400 2.06 2105 1459 2.26 2310 2500 1363 2.00 2044 1428 2.22 2269

Bhp — FIOP — Watts —

*Motor drive range: 900 to 1300 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1108 0.90 920 1186 1.08 1104 1263 1.30 1328 1130 0.97 991 1205 1.15 1175 1278 1.35 1380 1154 1.06 1083 1226 1.23 1257 1296 1.42 1451 1178 1.14 1165 1249 1.32 1349 1201 1.23 1257 1274 1.43 1461 1226 1.33 1359 1297 1.53 1564 1252 1.45 1482 1280 1.58 1615

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

1.0 1.2 1.4 1.6 1.8

1320 1.64 1676 1388 1.80 1891 1448 2.07 2115 1505 2.29 2340 1345 1.77 1809 1410 1.97 2013 1473 2.20 2248

External Static Pressure (in. wg)

1343 1.58 1615 1431 1.79 1829 1350 1.61 1645 1424 1.80 1921

1316 1.52 1553 1382 1.72 1758 1447 1.95 1993 1338 1.62 1656 1402 1.80 1870 1464 2.05 2095 1363 1.73 1768 1424 1.94 1983 1484 2.16 2207

1486 2.43 2483 1543 2.65 2708 1600 2.89 2953

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

1364 1.64 1676 1432 1.89 1931

1519 2.48 2534 1578 2.76 2820

1529 2.43 2483 1554 2.58 2637

—33—

Table 27 — Fan Performance, 548F060 High-Static Motor — Horizontal Discharge Units

548F060 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 789 0.40 420 896 0.53 557 990 0.67 704 1072 0.83 872 1153 1.00 1051 1600 826 0.46 483 931 0.61 641 1020 0.75 788 1101 0.91 956 1178 1.09 1145 1700 865 0.54 567 966 0.69 725 1051 0.84 883 1133 1.01 1061 1205 1.18 1240 1800 905 0.62 661 1002 0.78 820 1084 0.93 977 1163 1.10 1156 1235 1.29 1355 1900 945 0.72 757 1037 0.88 925 1119 1.04 1093 1194 1.21 1271 1266 1.40 1471 2000 984 0.82 862 1072 0.98 1030 1154 1.16 1219 1226 1.33 1397 1297 1.53 1608 2100 1024 0.93 977 1108 1.10 1156 1192 1.29 1355 1259 1.47 1545 2200 1064 1.05 1103 1145 1.22 1282 1225 1.43 1503 1294 1.62 1702 2300 1104 1.18 1240 1183 1.36 1429 1260 1.57 1650 2400 1145 1.32 1387 1222 1.45 1524 1296 1.73 1818 2500 1186 1.48 1555 1262 1.68 1765

548F060 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1221 1.17 1229 1256 1.30 1366 1283 1.32 1387 1600 1252 1.27 1334 1700 1278 1.37 1439 1800 1900 2000 2100 2200 2300 2400 2500

Bhp — FIOP — Watts —

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1303 1.48 1555 1371 1.69 1776 1433 1.90 1996 1480 2.09 2196 1528 2.30 2381 1330 1.59 1671 1396 1.80 1902 1460 2.03 2133 1517 2.25 2364 1566 2.47 2563 1362 1.73 1818 1422 1.94 2038 1485 2.16 2270 1544 2.40 2522 1594 2.64 2734 1393 1.87 1965 1452 2.08 2185 1510 2.31 2427 1570 2.55 2674 1620 2.80 2905 1423 2.02 2122 1483 2.24 2354 1538 2.46 2585 1594 2.71 2821 1454 2.18 2291 1515 2.41 2532 1571 2.64 2758 1623 2.88 2976 1485 2.36 2480 1544 2.59 2721 1604 2.84 2947 1518 2.55 2679 1574 2.78 2905

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

1311 1.45 1524 1340 1.58 1660 1330 1.61 1692 1373 1.77 1834 1345 1.57 1650 1397 1.76 1849 1424 1.89 1986 1470 2.08 2153

External Static Pressure (in. wg)

1327 1.66 1744

1330 1.78 1870 1392 1.97 2070

1331 1.89 1986 1400 2.12 2227 1461 2.34 2459

External Static Pressure (in. wg)

1633 3.03 3134 1692 3.28 3345 1746 3.61 3736

4. Maximum continuous bhp is 2.9 and the maximum continuous watts are 2562. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Indoor-Fan Motor Performance, Table 6 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

1365 1.94 2038 1426 2.15 2259

1303 1.22 1282 1345 1.34 1390

1657 3.07 3152 1710 3.38 3497

1359 1.80 1902

1645 2.98 3087 1675 3.17 3280

—34—

Table 28 — Fan Performance, 548F072 Standard Motor — Horizontal Discharge Units

548F072 (6 TONS) — STANDARD MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1800 765 0.45 487 821 0.51 532 923 0.65 638 1019 0.81 843 1900 802 0.45 539 854 0.58 585 953 0.73 700 1046 0.90 835 2000 840 0.60 600 888 0.66 646 984 0.82 771 2100 878 0.69 669 923 0.75 716 1015 0.91 843 2200 916 0.78 739 958 0.85 795 1046 1.01 924 2300 954 0.89 827 993 0.96 883 2400 993 1.00 916 1029 1.07 973 2500 1031 1.13 1022 1066 1.20 1081 2600 1070 1.26 1131 2700 2800 2900 3000

548F072 (6 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000

Bhp — FIOP — Watts —

*Motor drive range: 1070 to 1460 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1109 1.41 1258 1140 1.48 1318 1212 1.67 1482 1283 1.87 1656 1352 2.09 1849 1148 1.57 1396 1177 1.64 1456 1246 1.83 1621 1316 2.04 1805 1383 2.26 1997 1188 1.74 1543 1215 1.81 1604 1281 2.00 1770 1349 2.22 1962 1227 1.92 1700 1253 2.00 1770 1316 2.19 1936

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1178 1.14 1031 1249 1.32 1182 1316 1.52 1353 1382 1.72 1526 1201 1.23 1106 1274 1.43 1275 1338 1.62 1439 1402 1.83 1621 1226 1.33 1990 1297 1.53 1361 1363 1.73 1534 1424 1.94 1718 1252 1.45 1292 1320 1.64 1456 1388 1.85 1639 1448 2.07 1831 1280 1.58 1404 1345 1.77 1569 1410 1.97 1744 1309 1.71 1517 1372 1.91 1691 1434 2.11 1866 1336 1.85 1639 1400 2.06 1823 1459 2.26 1997 1363 2.00 1770 1428 2.22 1962 1390 2.15 1901 1456 2.38 2102 1418 2.31 2041 1446 2.48 2188 1510 2.73 2403 —————— 1476 2.67 2352 1537 2.92 2562 —————— 1506 2.88 2529 —————————

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.1 0.2 0.4 0.6 0.8

1103 1.34 1199 1179 1.52 1353 1251 1.71 1517 1322 1.92 1700

External Static Pressure (in. wg)

1.0 1.2 1.4 1.6

1483 2.56 2257 1543 2.80 2462 ———

External Static Pressure (in. wg)

1073 0.99 907 1154 1.16 1047 1101 1.08 981 1182 1.27 1140

1079 1.13 1022 1160 1.31 1173 1237 1.51 1344 1112 1.25 1123 1190 1.43 1275 1264 1.63 1447 1145 1.39 1241 1220 1.57 1396 1292 1.77 1569

1486 2.43 2145 1543 2.65 2335 1514 2.61 2300 1569 2.83 2487

3. Maximum usable watts input is 2120 and maximum continuous bhp is 2.40. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Indoor-Fan Motor Performance, Table 6.

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

1129 1.19 1072 1209 1.39 1241

1382 2.42 2136 1444 2.63 2317

1473 2.20 1945 1496 2.34 2067

1519 2.48 2188

1099 0.96 883 1126 1.06 965

1413 2.44 2154

—35—

Tabl e 29 — Fan Performance, 548F072 High-Static Motor — Horizontal Discharge Units)

548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1800 942 0.73 700 1047 0.90 835 1139 1.05 956 1193 1.14 1031 1276 1.30 1165 1900 982 0.83 779 1084 1.02 932 1160 1.11 1006 1223 1.24 1114 2000 1022 0.94 867 1121 1.12 1014 1188 1.22 1097 1254 1.36 1216 2100 1063 1.10 998 1140 1.18 1064 1196 1.27 1140 1272 1.45 1292 2200 1104 1.20 1081 1159 1.23 1106 1229 1.41 1258 2300 1130 1.27 1140 1196 1.37 1224 1264 1.56 1387 2400 1174 1.37 1224 1245 1.57 1396 2500 1201 1.50 1335 1284 1.65 1465 2600 1246 1.67 1482 2700 1285 1.80 1595 2800 2900 3000

548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000

Bhp — FIOP — Watts —

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1304 1.85 1639 1374 2.12 1875 1459 2.25 1989 1514 2.42 2136 1570 2.66 2343 1345 2.05 1814 1412 2.32 2050 1496 2.54 2240 1529 2.61 2300 1603 2.87 2521 1378 2.30 2032 1451 2.40 2119 1534 2.66 2343 1560 2.81 2470

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1341 1.40 1250 1413 1.55 1378 1474 1.58 1404 1522 1.74 1564 1566 1.89 1704 1374 1.53 1361 1437 1.62 1439 1490 1.67 1482 1538 1.84 1653 1583 2.00 1801 1396 1.66 1473 1460 1.68 1491 1509 1.77 1569 1558 1.95 1752 1603 2.12 1909 1413 1.75 1552 1475 1.73 1534 1529 1.92 1700 1578 2.11 1901 1624 2.30 2070 1434 1.81 1604 1487 1.85 1639 1554 2.07 1831 1604 2.28 2049 1651 2.48 2232 1459 1.88 1665 1520 2.07 1831 1576 2.24 1980 1627 2.46 2218 1674 2.68 2415 1502 2.06 1823 1552 2.24 1980 1604 2.42 2136 1656 2.66 2396 1524 2.24 1980 1585 2.42 2136 1638 2.60 2292 1552 2.40 2119 1616 2.63 2317 1671 2.80 2462 1584 2.61 2300 1646 2.83 2487 1624 2.85 2504 1671 3.03 2725 1742 3.43 3090 —— — —— — —— — 1692 3.49 3140 1764 3.95 3558 —— — —— — —— —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1312 1.76 1560 1366 1.96 1735 1435 2.10 1858 1494 2.19 1936 1354 1.95 1726 1403 2.14 1892 1474 2.21 1954 1536 2.46 2171

1.2 1.4 1.6 1.8 2.0

1677 2.99 2661 1739 3.33 2998 1795 3.67 3299 —— —

External Static Pressure (in. wg)

1301 1.38 1233 1329 1.44 1284

1306 1.53 1361 1363 1.70 1508

1305 1.63 1447 1373 1.84 1630 1440 1.95 1726 1338 1.75 1552 1402 1.99 1761 1469 2.04 1805

External Static Pressure (in. wg)

1706 2.97 2653 1761 3.27 2941 —— —

3. Values include losses for filters, unit casing, and wet coils. See page 47 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 2.9 and the maximum continuous watts are 2562. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Indoor-Fan Motor Performance, Table 6 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

1340 1.66 1473 1397 1.86 1648

1691 2.86 2574

1725 3.08 2772 1775 3.35 3019

1354 1.58 1404

1611 3.01 2648

1704 2.90 2609

1740 3.12 2804

—36—

PRE-START-UP

WARNING: Failure to observe the following warn-

ings could result in serious personal injury:

1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system.

2. Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured.

3. Do not remo ve compres sor termi nal cov er until all electrical sou rc e s are disco nnected.

4. Relieve all pressure from system before touching or disturbing anything inside compressor terminal box if refrigerant leak is suspected around compressor terminals. Use accepted methods to recover refrigerant.

5. Never attempt to repair soldered connection while refrigerant system is under pressure.

6. Do not use torch to remove any component. System contains oil and refrigerant under pressure. To remove a component, wear protective goggles and proceed as follows:

a. Shut off electrical power to unit. b. Recover refrigerant to relieve all pressure

from system usin g both high- and low-pres sure ports.

c. Cut component connection tubing with tub-

ing cutter, and remove component from unit.

d. Carefully unsweat remaining tubing stubs

when necessary. Oil can ignite when expo sed to torch flame.

Proceed as follows to ins pect and prep are the unit f or initial start-up:

1. Remove all access panels.

2. Read and follow instructions on all WARNING, CAUTION, and INFORMATION labels attached to (or shipped with) unit.

3. Make the following inspections: a. Inspect for shipping and handling damages such

as broken lines, loose parts, or disconnected wires.

b. Inspect for oil at all refrigerant tubing connections

and on unit base. Detecting oil generally indicates a refrigerant leak. Leak-test all refrigerant tubing connections using electronic leak detector, halide torch, or liquid-soap solution.

c. Inspect all field- and factory-wiring connections.

Be sure that connections are completed and tight. Ensure that wiring does not contact refrigerant tubing or sharp metal edges.

d. Inspect coil fins. If damaged during shipping and

handling, caref ully straighten fins with a fi n comb.

4. Verify the following condition s: a. Make sure that outdoor-fan blades are correctly

positioned in fan orifice. Refer to Outdoor-Fan

Adjustment section on page 39 for more details. b. Make sure that air filter(s) is in place. c. Make sure that condensate drain trap is filled with

water to ensure proper drainage. d. Make sure that all tools and miscellaneous loose

parts have been removed. e. Ensure wires do not come in con tact with r efriger-

ant tubing.

START-UP

I. UNIT PREPARATION

Make sure that unit has b een installed in accordance with installation instructions and applicable codes.

II. RETURN-AIR FILTERS

Make sure correct fil ters are installed in u nit (see Table 1). Do not operate unit without return-air filters.

III. OUTDOOR-AIR INLET SCREENS

Outdoor-air inlet screen(s ) mus t be in place before operati ng unit.

IV. COMPRESSOR MOUNTING

Compressors are internally spring mounted. Do not loosen or remove compressor holddown bolts.

V. INTERNAL WIRING

Check all electrical conne c tio ns in uni t co ntr ol b oxe s; tighte n as required.

VI. REFRIGERANT SERVICE PORTS

Each unit system h as 3 Schrader-type servic e ports: one on the suction line, one on the liquid line, and o ne on the compressor discharge line. Be sure that caps on the ports are tight.

VII. HIGH FLOW VALVES

Located on the compressor hot gas and suction tubes are High Flow Valves. Large black plastic caps distinguish these valves with O-rings located inside the caps. These valves can not be accessed for service in the field. Ensure the plastic caps are in place and tight or the possibility of refrigerant leakage could occur.

VIII. COMPRESSOR ROTATION

On 3-phase (sizes 048, 060 and 072) units it is important to be certain compresso r is rotating in the proper direction. To determine whether or not compressor is rotating in the proper direction:

1. Connect service gages to suction and discharge pressure fittings.

2. Energize the compressor.

3. The suction pressure should drop and the discharge pressure should rise, as is normal on any start-up.

If the suction pressure does not drop and the discharge pressure does not rise to normal levels:

1. Note that the indoor fan (060 and 072 three-phase units only) is probably also rotating in the wrong direction.

2. Turn off power to the unit and tag disconnect.

3. Reverse any two of the unit power leads.

4. Turn on power to the unit and energize compressor.

The suction and discharge pressure levels should now move to their normal start-up levels.

NOTE: When the compressor is rota ting in the wrong direction, the unit makes an elevated level of noise and does not provide cooling.

IX. COOLING

Set space thermostat to OFF position. Set system selector switch at COOL position and fan switch at AUTO position. Adjust thermostat to a setting below room temperature. Compressor starts on closure of contactor.

—37—

Check cooling effects at a setting below room temperature. Check unit charge. Refer to Refrigerant Charge section on page 40. Unit must operate for at least 15 minutes before adjusting charge.

Reset thermostat at a position above room temperature. Compressor will shut off .

A. To Shut Off Unit

Set system selector switch at OFF position. Resetting thermostat at a position ab ove room temperature shu ts unit off temporarily until space temperature exceeds thermostat setting.

X. HEATING

To start unit, turn on main power supply. Set system selector switch at HEAT position, and set ther-

mostat at a setting above room temperature. Set fan at AUTO position.

First stage of thermostat energizes the indoor fan, compressor, and outdoor fan; second stage energizes electric heater elements, if installed. Check heating effects at air supply grille(s).

If electric heaters do not energize, reset limit switch (located on indoor-fan scroll) by depressing button located between terminals on the switch.

A. To Shut Off Unit

Set system selector switch at OFF position. Resetting thermostat at a position below room temperature temporarily shuts unit off until spa ce temperature falls below thermostat setting.

XI. SAFETY RELIEF

A soft solder joint at the suction line fitting provides pressure relief under abnormal temperature and pressure conditions.

XII. VENTILATION (CONTINUOUS FAN)

Set fan and system selector switches at ON and OFF positions, respectively. Indoor fan operates continuously to provide constant air circulation.

XIII. OPERATING SEQUENCE

A. Cooling, Units Without Economizer

When thermos tat calls for cool ing, terminals G and Y1 a re energized. The indoor fan contactor (IFC), compressor contactor (C1), reversing valve solenoid (RVS), indoor-fan mo tor, compressor, and outdoor fan start. The outdoor-fan motor runs continuously while unit is cooling.

B. Heating, Units Without Economizer

Upon a call for heating through term inal W1, IFC, compressor, and outdoor fan are energized. On units equipped for 2 stages of heat, when additional heat is needed HC is energized through W2.

C. Cooling Units With EconoMi$er

When the OAT is above the ECON SP set point and the room thermostat calls for Stage 1 cooling (R to G + Y1), the indoorfan motor (IFM) is energized and the EconoMi$er damper modulates to minimum position. The compressor contacto r is energized to start the compressor and outdoor-fan motor (OFM). After the thermostat is satisfied, the damper modulates to the fully closed position when the IFM is deenergized.

When the OAT is below the ECON SP setting and the room thermostat calls for Stage 1 cooling (R to G + Y1), the EconoMi$er modulates to the minimum position when the IFM is energized. The EconoMi$er provides Stage 1 of

cooling by modulating the return and outdoor air dampers to maintain a 55 F supply air set point. If the supply-air temperature (SAT) is greater than 57 F, the Eco noMi$er modulates open, allowing a greater amount of outdoor air to enter the unit. If the SA T drops bel ow 53 F, the outdoor ai r dam per modulates closed to reduce the amou nt of outd oor air. When the SAT is between 53 and 57 F, the EconoMi$er maintains its position.

If outdoor air alone cannot satisfy the cooling requirements of the conditioned space, and the OAT is above the MECH CLG LOCKOUT set point, the EconoMi$er integrates free cooling with mechanical cooling. This is accomplished by the strategies below.

NOTE: Compressor has a two-minute Minimum On, Minimum Off, and interstage delay timer.

1. If Y1 is energ ized, and the room thermostat call s for Y2 (2-stage thermostat), the compressor and OFM are energized. The position of the EconoMi$er damper is maintained at its current value.

2. If Y1 is energized for more th an 2 0 minutes, and Y2 is not energized (whether or not a 2-stage thermostat is used), the compressor and OFM are energized. The position of the EconoMi$er damper is maintained at its current value.

3. If Y1 is energized, and th e compr essor no. 1 is already energized (see St ep 2) and the r oom thermosta t calls for Y2, compressor no. 1 continues to operate.

4. If compressor no. 1 is ene rgi zed an d the t hermostat is satisfied, the compressor no. 1, the OFM, and IFM are deenergized and the EconoMi$er modulates closed.

When the OAT is below the MECH CLG LOCKOUT set point, the compressors remain off.

D. Cooling, Units With Durablade Economizer

When the outdoor-air temperature is above the outdoor-air thermostat (OAT) setting and the room thermostat calls for cooling, compressor contacto r is energized to sta rt compressor and the outdoor-fan motor (OFM). The indoor-fan motor (IFM) is energized and the economizer damper moves to the minimum position. After the thermostat is satisfied, the indoor fan turns off. The damper then moves to the fully closed position. When using continuous fan, the damper moves to the minimum position.

When the outdoor-air temperature is below the OAT setting and the thermostat calls for cooling, the economizer damper moves to the min imum position. If the supp ly-air temperature is above 57 F, the damper continues to open until it reaches the fully open position or until the supply-air temperature drops below 52 F.

When the supply-air temperature falls between 57 F and 52 F, the damper will remain at an intermediate open position. If the supply-air temperature falls below 52 F, the damper will modulate closed until it reaches the minimum position or until the supply-air temperature is above 52 F. When the thermostat is satisfied, the damper moves to the fully closed position when using AUTO. fan or to the minimum position when using continuous fan.

If the outdoo r air alone c anno t sati sfy th e cool ing requ irem ents of the conditioned space, economizer cooling is integrated with mechanical cooling, provid ing 2 stages of cool ing. Compressor and the outdoor fa n will be energize d and the position o f the economizer damper wil l be determi ned by the supp ly-air temperature. When the second stage of cooling is satisfied, the compressor and OFM will be deenergized. The damper position will be determined by the supply-air tem perature. When

—38—

the first stage of cooling is satisfied, there is a 30-second delay before the evaporator fan shuts off. The damper then moves to the fully closed position. When using a continuous fan, the damper moves to the mi nimum position.

E. Heating, Units With Economizer

Upon a call for heat through W1, the IFC energizes to start the evaporator fa n and the econ omizer damper bl ade opens to the minimum position. If the accessory two-position damper is used , the outdoor-air damper o pens to the minimum position when ever the evaporator fan runs. If unit is equipped with 2 stages of heat, when additional heat is needed a call is made through W2.

As space temperature approaches the heating temperature set point, heati ng stag es cycle off. Economizer or two-position damper returns to fully closed position.

F. D e f r os t

As frost builds up on the outdoor coil, the coil temperature drops below 28 F. When this outdoor-coil temperature drop is sensed by the defrost thermostat (DFT) and the defrost timer is at the end of a timed period (adjustable at 30, 5 0, or 90 minutes), the unit operates in a defrost cycle controlled by the defrost timer and thermostat . Durin g this cyc le , the reversing valve solenoid (RVS) is energized and the outd oor fan shuts off. The electric heaters (if installed) will be energized.

The unit continues to defrost until the coil temperature as measured by DFT reaches 65 F, or the duration of defrost cycle completes a 10-minut e period.

At the end of the defrost cycle, the electric heaters (if installed) and the reversing valve will be deenergized, and the outdoor-fan motor will be energ ized. The unit will now operate in the Heating mode.

If the thermostat is satisfied during a defrost cycle, the unit will continue in the Defrost mode unti l the time or t emperature constraints are satisfied.

SERVICE

CAUTION:

-                             

I. CLEANING

Inspect unit interior at the beginning of each heating and cooling season and as operating conditions require.

A. Indoor Coil

1. Turn unit power off and tag disconnect. Remove filter access panel and indoor coil access panel.

2. If accessory economizer is installed, remove economizer by disconnecting Molex plug and removing economizer mounting screws.

3. Slide filters out of unit.

4. Clean coil using a commercial coil cleaner or dishwasher detergent in a pressurized spray canister. Wash both sides of coil and flush with clean water. For best results, back-flush toward return-air section to remove foreign material. Flush condensate pan after completion.

5. Reinstall ec onomizer and filters.

6. Reconnect wiring.

7. Replace access panels.

B. Outdoor Coil

Inspect coil monthly. Clean outdoor coil annually, and as required by location or outdoor-air conditions.

One-Row Coils is not necessary to remove top panel.

2-Row Coils — Clean coil as follows:

1. Turn off unit power and tag disconnect.

2. Remove top panel screws on outdoor end of unit.

3. Remove outdoor coil corn er post. See Fig. 35. To hold top panel open, place coil corner post between top panel and center post. See Fig. 36.

4. Remove device holding coil sections together at return end of outdoor coil. Carefully separate the outer coil section 3 to 4 in. from the inner coil section. See Fig. 37.

5. Use a water hose or other suitable equipment to flush down between the 2 coil s ections to remove dirt and debris. Clean the outer surfaces with a stiff brush in the normal manner.

6. Secure the sections together. Reposition the outer coil section, and remove the coil corner post from between the top panel and center post. Install the coil corner and center posts, and replace all screws.

C. Condensate Drain

Check and clean each year at start of cooling season. In winter, keep drain dry or protect against freeze-up.

D. Filters

Clean or rep lace at s tar t of e ach h eatin g an d co oling seas on, or more often if operating conditions require it. Replacement filters must be same dimensions as original filters.

E. Outdoor-Air Inlet Screens

Clean screens with steam or hot water and a mild detergent. Do not use disposable filters in place of screens.

II. LUBRICATION

A. Compressor

The compressor is char ged with the c orrect amount o f oil at the factory.

B. Fan Motor Bearings

Fan motor bearings are permanently lubricated. No further lubrication of outdoor- or indoor-fan motors is required.

III. OUTDOOR-FAN ADJUSTMENT (FIG. 38)

1. Shut off unit power supply and tag disconnect.

2. Remove outdoor-fan assembly (grille, motor, motor cover, and fan) by removing screws and flipping assembly onto unit top cover.

3. Loosen fan hub setscrews.

4. Adjust fan height as shown i n Fig. 38.

5. Tighten setscrews.

6. Replace outdoor-fan assembly.

IV. BLOWER BELT ADJUSTMENT

Inspect blo wer belt for wear, proper belt tensio n, and pu lley alignment as conditions require or at the beginning of each heating and air conditioning season. Refer to Step 7 — Adjust Evaporator Fan Speed on page 20 for adjustment and alignment proc edur e.

V. ECONOMIZER ADJUSTMENT

Refer to Optional Economizer sections on pages 13 and 16.

VI. HIGH-PRESSURE SWITCH

Located on the compressor hot gas line is a high-pressure switch containing a Schrader core depressor. This switch opens at 428 psig and closes at 320 psig. No adjustment is necessary. Refer to Table 1.

— Wash coil with comm ercial coil cleaner. It

—39—

Fig. 35 — Cleaning Outdoor Coil

Fig. 36 — Propping Up Top Panel

VIII. FREEZESTAT

Located on the “hair pin” end of the indoor coil is a bimetal temperature sens ing swit ch. This switch p rotects the indoo r coil from freeze -u p d ue to lack of ai rf l ow. The switch op e ns at 30 F and closes at 45 F. No adjust me nt is ne ces sar y. Refer to Table 1.

IX. REFRIGERANT CHARGE

Amount of refrigerant charge is listed on unit nameplate (also refer to Table 1).

Unit panels must be in place when unit is operating during charging procedure. Unit must operate a minimum of 15 minutes before checking charge.

A. No Charge

Use standard evacuating techniques. After evacuating system, weigh in the speci fied amount of refrig erant. (Refer to Table 1.)

B. Low Charge Cooling

Use Cooling Charging Charts, Fig. 39-42. Vary refrigerant until the conditions of the charts are met. Note that the charging charts are different from type normally used. Charts are based on charging the units to the co rrect superheat for the various operating con ditions. Accurate pr essure gage and temperature sensing device are required. Do not use mercury or small dial type ther mometers because t hey are not adequate for this type of measurement. Connect the pressure gage to the service port on the suction line. Mount the temperature se nsing device on the su ction line near the compressor and insula te it so that ou tdo o r ambie nt tempe r ature does not affect the reading. Indoor-air cfm must be within the normal operating range of the unit.

C. To Use Cooling Charging Charts

This method is to be used in Cooling mode only. Take the outdoor ambient temperature and read the suction pressure gage. R e f er to charts to d e termine what th e s uction temper ature should be. If suction temperature is high, add refrigerant. If suction temperature is low, carefully recover some of the charge. Recheck the suction pressure as charge is adjusted.

Example: (Fig. 39)

Outdoor Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 F

Suction Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74 psig

Suction Temperature should be . . . . . . . . . . . . . . . . . . . .70 F

(Suction Temperature may vary ± 5° F.)

D. Heating Mode Charge

Do not attempt to adjust char ge by c oolin g me thods w hile in Heating mode. When charging is necessary in Heating mode, recover refrigerant and weigh in according to unit data plate refrigerant data.

Fig. 37 — Separating Coil Sections

VII. LOSS-OF-CHARGE SWITCH

Located on the outdoor liquid line is a low-pressure switch which functions as a loss-of-charge switch. This switch contains a Schrader core depressor. This switch opens at 7 psig and closes at 22 psig. No adjustment is necessary. Refer to Table 1.

—40—

UNIT 548F

036-060 AND

072 (208/230 v)

072

(460 v and 575 v)

FAN HEIGHT — ‘‘A’’

(in.)

2.75

3.50

Fig. 38 — Outdoor-Fan Adjustment

Fig. 39 — Cooling Charging Chart — 548F036

Fig. 41 — Cooling Charging Chart — 548F060

Fig. 40 — Cooling Charging Chart — 548F048

Fig. 42 — Cooling Charging Chart — 548F072

—41—

TROUBLESHOOTING

Tabl e 30 — Heating and Cooling Troubleshooting

PROBLEM CAUSE REMEDY

Compressor and outdoor fan will not start.

Compressor will not start but outdoor fan runs.

Compressor cycles (other than normally satisfying thermostat).

Compressor operates continuously.

Compressor makes excessive noise. (Sizes 048, 060 and 072 only)

Excessive head pressure.

Head pressure too low.

Excessive suction pressure.

Suction pressure too low.

Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer,

control relay, or capacitor. Insufficient line voltage. Determine cause and correct. Incorrect or faulty wiring. Check wiring diagram and rewire correctly. Thermostat setting too high. Lower thermostat setting below room temperature. High pressure switch tripped. See problem ‘‘Excessive head pressure.’’ Low pressure switch tripped. Check system for leaks. Repair as necessary. Freeze-up protection thermostat tripped. See problem ‘‘Suction pressure too low.’’ Faulty wiring or loose connections in compres-

sor circuit. Compressor motor burned out, seized, or

internal overload open. Defective run/start capacitor, overload, start

relay. One leg of 3-phase power dead. Replace fuse or reset circuit breaker. Determine cause. Refrigerant overcharge or undercharge. Recover refrigerant, evacuate system, and recharge to nameplate. Defective compressor. Replace and determine cause. Insufficient line voltage. Determine cause and correct. Blocked outdoor coil or dirty air filter. Determine cause and correct. Defective run/start capacitor, overload, or start

relay. Defective thermostat. Replace thermostat. Faulty outdoor-fan (cooling) or indoor-fan

(heating) motor or capacitor. Restriction in refrigerant system. Locate restriction and remove. Dirty air filter. Replace filter. Unit undersized for load. Decrease load or increase unit size. Thermostat set too low. Reset thermostat. Low refrigerant charge. Locate leak; repair and recharge. Leaking valves in compressor. Replace compressor. Air in system. Recover refrigerant, evacuate system, and recharge. Outdoor coil dirty or restricted. Clean coil or remove restriction. Compressor rotating in the wrong direction. Reverse the 3-phase power leads as described in

Dirty air filter. Replace filter.

Dirty outdoor coil. Clean coil. Refrigerant overcharged. Recover excess refrigerant. Air in system. Recover refrigerant, evacuate system, and recharge. Condensing air restricted or air short-cycling. Determine cause and correct. Low refrigerant charge. Check for leaks; repair and recharge. Compressor valves leaking. Replace compressor. Restriction in liquid tube. Remove restriction. Compressor rotating in the wrong direction

(unit sizes 048, 060 and 072) High heat load. Check for source and eliminate. Compressor valves leaking. Replace compressor. Refrigerant overcharged. Recover excess refrigerant. Dirty air filter (cooling) or dirty outdoor coil

(heating). Low refrigerant charge. Check for leaks; repair and recharge. Metering device or low side restricted. Remove source of restriction. Insufficient indoor airflow (cooling mode). Increase air quantity. Check filter and replace if necessary. Temperature too low in conditioned area. Reset thermostat. Field-installed filter drier restricted. Replace. Outdoor ambient below 25 F. Install low-ambient kit.

Replace component.

Check wiring and repair or replace.

Determine cause. Replace compressor.

Determine cause and replace.

Replace.

Start-Up, page 37.

Reverse the 3-phase power leads as described in Start-Up, page 37.

Replace filter.

—42—

Table 31 — Durablade Economizer Troubleshooting

PROBLEM CAUSE REMEDY

Damper does not open.

Economizer operation limited to minimum position.

Damper does not close.

Economizer damper does not close on power loss.

LEGEND C1 —

EC — IFC — IFO — OAT — PL — SAT — SW —

Common Power Enthalpy Control Indoor Fan Contactor Indoor Fan On Outdoor-Air Temperature Plug Supply-Air Thermostat Economizer Position Switch

Indoor fan is off. 1. Check to ensure that 24 vac is present at terminal C1 on the IFC or that 24 vac is

No power to economizer motor.

Economizer motor failure. If the indoor fan and economizer motor are energized, verify that there is a minimum

OAT or EC set too high. 1. Set at correct temperature (3 F below indoor space temperature).

Economizer control board incorrectly wired or not functioning.

Incorrect SAT wiring or inoperative SAT.

Incorrect economizer wiring.

Incorrect damper actuator wiring or inoperative economizer circuit board.

Incorrect SAT wiring or inoperative SAT.

Economizer motor failure. If economizer control board and SAT are functioning properly, verify that there is a

Insufficient battery power, inoperative economizer control board.

present at the IFO terminal. Check whether 24 vac is present at PL6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram).

2. Check proper thermostat connection to G on the connection board.

1. Check that SW3 is properly making contact with the damper blade. Check that SW1 is in the NC (normally closed) position.

2. Check diode D18. If diode is not functioning properly, replace circuit board.

3. Confirm that the economizer control board is grounded properly at PL6-4 (brown wire) and at brown terminal of the economizer control board (brown wire). The economizer motor must also be grounded properly at the negative motor terminal (brown wire).

4. Verify SW1 and SW3 are working and wired properly (see unit label diagram).

5. Check for 24 vac input at both PL6-1 (red wire) and PL6-3 (black wire). If 24 vac not present, check unit wiring (see unit label diagram). If 24 vac is found in both places, check for 24 vac at the yellow terminal of the economizer control board (yellow wire). If 24 vac power is not present, replace the economizer control board.

of 18 vdc at the positive motor terminal. If the motor is not operating, replace the motor.

2. Check OAT or EC by setting above outdoor temperature or humidity level. If the OAT or EC switches do not close, replace OAT or EC.

1. Perform the following tests when OAT or EC is closed. Y1 is called for, and damper is at minimum position. Confirm 24 vac on gray terminal of the economizer control board (gray wire). If 24 vac is not present, check wiring (see unit label diagram).

2. Verify that SW1 and SW3 are wired correctly and working properly (see unit label diagram).

3. Check to ensure that 24 vac exists at PL6-2 (blue wire). If 24 vac is not present, check wiring (see unit wiring label diagram).

4. Check 24 vac output at PL6-10 (white wire). If 24 vac is not present, replace economizer control board.

1. After verifying that the OAT and EC settings and the economizer control board wiring are correct, check to ensure that the 24 vac terminal of the SAT has 24 vac (white wire). If OAT, EC, and control board are functioning and wired properly and no 24 vac exists, check wiring (see unit label diagram).

2. If supply-air temperature is greater than 57 F, 24 vac should be found at terminal T2 on the SAT (pink wire). If 24 vac is not present, replace SAT.

1. Verify that SW2 and SW4 are wired and working properly (see unit label diagram).

2. Check diode D19. If diode is not functioning properly, replace circuit board.

1. After verifying that the wiring is correct, modulate the damper to the minimum position. Remove the calls for G.

2. If the damper does not move, check for 24 vac at PL6-1 (red wire). If 24 vac is not present, check wiring (see unit label diagram).

3. If damper still does not move, check for 24 vac at blue terminal of economizer control board (blue wire). If 24 vac is not present, replace the economizer circuit board.

1. After verifying that the wiring is correct and the economizer control board is functioning properly, place the OAT or EC switch in the closed position. Place a call for Y1 and open the damper to the fully open position. Confirm that the 24 vac terminal of the SAT has 24 vac (white wire). If 24 vac is not present, check wiring (see unit label diagram).

2. If supply-air temperature is less than 52 F, 24 vac should be found at terminal T1 on the SAT (violet wire). If 24 vac not found, replace SAT.

minimum of 18 vdc at the positive motor terminal. If a minimum of 18 vdc is present and the motor is still not operating, replace the motor.

1. Check voltage potential across batteries. If lower than 14 vdc, replace close-onpower-loss power supply (9-v alkaline batteries). Check this emergency power supply on a regular basis or whenever the filters are changed.

2. If the close-on-power-loss and economizer control board are functioning properly, check for 14 vdc or higher at the blue terminal of the economizer control board (blue wire) when power is disconnected from unit. If 14 vdc is not present, replace the control board.

—43—

Table 32 — EconoMi$er Troubleshooting

PROBLEM CAUSE REMEDY

Damper does not open.

EconoMi$er operation limited to minimum position.

Damper position less than minimum position set point.

Damper does not return to minimum position.

Damper does not close on power loss

IFM — PL —

LEGEND

Indoor-Fan Motor Plug

Indoor Fan is Off.

No power to EconoMi$er controller.

No power to G Terminal. If IFM is on, check to ensure 24 vac is present on G Terminal of the

Controller fault. If STATUS light is flashing on flash, the EconoMi$er controller is

Thermostat fault. If STATUS light is flashing two flashes, the EconoMi$er controller senses

Actuator Fault. Check the wiring between the EconoMi$er controller and the actuator.

Minimum position set incorrectly.

EconoMi$er changeover set point set too high or too low.

Supply air temperature sensor faulty.

OAT sensor faulty. If STATUS light is flashing five flashes, the OAT sensor is faulty. Check

Supply air low limit strategy controlling.

ventilation strategy

controlling.

Damper travel is restricted.

Check to ensure that 24 vac is present at Terminal C1 (Common Power) on the IFC (Indoor Fan contactor) or that 24 vac is present at the IFO (Indoor Fan On) terminal. Check whether 24 vac is present at PL (Plug 6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram).

Check proper thermostat connection to G on the connection board. Check to ensure that 24 vac is present across Terminals 24 VAC and

24V COM on the EconoMi$er control. If 24 vac is not present, check wiring (see unit label diagram). If 24 vac is present, STATUS light should be on constantly.

EconoMi$er controller. If 24 vac is not present, check wiring (see unit label diagram).

experiencing a fault condition. Cycle power to the controller. If condition continues, replace the EconoMi$er controller.

the thermostat is wired incorrectly. Check wiring between the thermostat and the connection board in the electrical panel. The fault condition is caused by Y2 being energized before Y1.

Hold CONFIG button between three and ten seconds to verify the actuator’s operation. (This process takes three minutes to complete.)

Verify that the MIN POS (%) is set greater than zero. Adjust MIN POS (%) to 100% to verify operation, and then set to correct setting.

Set at correct value. See Table 3.

If STATUS light is flashing four flashes, the supply air temperature sensor is faulty. Check wiring or replace sensor.

wiring or replace sensor. The supply air temperature is less than 45° F, causing the minimum

position to decrease. Refer to the Start-Up instructions. Verify correct setting of MIN POS (%). If correct, EconoMi$er is operating correctly.

If a CO2 sensor is being used, and the damper position is greater than minimum position, the ventilation control strategy is controlling. Refer to the Start-Up instructions. EconoMi$er is operating correctly.

Check to ensure the damper is not blocked.

—44—

SERVICE TRAINING

Packaged Service Training programs are an excellent way to increase your knowle dge of the equipment discussed in this manual, including:

• Unit Familiarization • Maintenance

• Installation Overview • Operating Sequence

A large selection of product, theory, and skills programs are available, using popular video-based formats and materials. All include video and/or slides, plus companion book.

Classroom Service Training which includes “hands-on” experience with the products in our labs can mean increased confidence that re ally pays dividends in faster tro ubles hoo ting a nd fewer cal lbacks. Course descriptions and schedules are in our catalog.

CALL FOR FREE CATALOG 1-800-962-9212

[ ] Packaged Service Training [ ] Classroom Service Training

—45—

START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

MODEL NO.: ___________________________ ____________ SERIAL NO.: ________________________________________ DATE:______________________________________________ TECHNICIAN:_______________________________________ JOB LOCATION:____________________________________

II. PRE-START-UP (insert checkmark in box as each item is completed)



VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS



CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS



CHECK THAT INDOOR AIR FILTER IS CLEAN AND IN PLACE



VERIFY THAT UNIT INSTALLATION IS LEVEL



CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS



CHECK PULLEY ALIGNMENT AND BELT TENSION REFER INSTALLATION INSTRUCTIONS (Size 072 Standard Motor and Sizes 036-060 Alternate Motor and Drives)



ENSURE BELT TENSION IS CORRECT AND BLOWER PULLEYS ARE PROPERLY ALIGNED

III. START-UP:

ELECTRICAL

SUPPLY VOLTAGE L1-L2 L2-L3 L3-L1 COMPRESSOR AMPS L1 L2 L3 INDOOR-FAN AMPS L1 L2 L3

TEMPERATURES AND PRESSURES

OUTDOOR-AIR TEMPERATURE DB RETURN-AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB WB

(COOLING MODE)

REFRIGERANT SUCTION PSIG SUCTION LINE TEMPERATURE F REFRIGERANT DISCHARGE PSIG LIQUID LINE TEMPERATURE F



VERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION



VERIFY REFRIGERANT CHARGE USING COOLING CHARGING CHARTS ON PAGE 41 (COOLING MODE) ONLY). UNIT MUST OPERATE A MINIMUM OF 15 MINUTES BEFORE ADJUSTING CHARGE.

CUT ALONG DOTTED LINE

CL-1

CUT ALONG DOTTED LINE

CATALOG NO. 5354-808

Bryant 548F User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual